# Cooltwin's aptitude center

Question asked by cooltwins in #Campus Placements on Nov 24, 2009

cooltwins · Nov 24, 2009

Rank B1 - LEADER

hey guys,

i have started this thread in the hope of helping you to develop your strengths and work on your weaknesses and at the same time have fun.....

well with this same motto my college began these spl. classes to improve our aptitude strength leaving aside the fact we were still in our 2nd year.😔

but it was not as it was expected.....it was all fun....😁

i decided to share some of those questions we encountered with you in this thread.:smile: :smile: :smile:

hope it helps you... Posted in: #Campus Placements

i have started this thread in the hope of helping you to develop your strengths and work on your weaknesses and at the same time have fun.....

well with this same motto my college began these spl. classes to improve our aptitude strength leaving aside the fact we were still in our 2nd year.😔

but it was not as it was expected.....it was all fun....😁

i decided to share some of those questions we encountered with you in this thread.:smile: :smile: :smile:

hope it helps you... Posted in: #Campus Placements

cooltwins · Nov 24, 2009

Rank B1 - LEADER

So here goes the first one for you....😉

1)

NOTE: this appeared in the 2003 MBA paper.

1)

**In a row of boys A is 15th from the left and B is 4th from the right.there are three boys between A and B. C is the left of A.What is c's position from right?**NOTE: this appeared in the 2003 MBA paper.

Saandeep Sreerambatla · Nov 24, 2009

Rank A2 - PRO

is it 9th ??

cooltwins · Nov 24, 2009

Rank B1 - LEADER

2)

2.1)Who did not have a cricket bat at the end?

(a)A, (b)B, (c)C, (d)D

2.2)Total cost of materials C had in the begining?

(a)Rs.5000,(b)Rs.3000,(c)Rs.2100,(d)Rs.1700

2.3)who incurred the maximum loss in the transaction?

(a)D (b)A (c)C (d)B

**A,B,C,D are 4 friends who do not mind exchanging items. A had 2 chessboards each costing Rs. 500 and a record player. C originally had a cycle and a walk man. each cricket bat costs Rs.700. Both D,C got a cricket bat from B. A gave his record player costing Rs.2000 to B.C got a camera costing Rs.1500 from D.The cycle costs Rs. 1000 and the Walkman costs Rs.700.B had 3 cricket bats initially.D had 2 cameras total cost of which is Rs.5000. A gave one of his chess boards to C and took C's cycle.C gave his walkman to D.**(2006 MBA)2.1)Who did not have a cricket bat at the end?

(a)A, (b)B, (c)C, (d)D

2.2)Total cost of materials C had in the begining?

(a)Rs.5000,(b)Rs.3000,(c)Rs.2100,(d)Rs.1700

2.3)who incurred the maximum loss in the transaction?

(a)D (b)A (c)C (d)B

cooltwins · Nov 24, 2009

Rank B1 - LEADER

Yeah you are right 😁English-Scaredis it 9th ??

the answer for the 1st is 9th.

cooltwins · Nov 24, 2009

Rank B1 - LEADER

2nd question continued....

2)

2.4)who made profit after the transactions..?

(a)A,B (b)A,D (c)B,C (d)C,D

2.5)After the transaction, who had items total cost of Rs. 1500?

(a)A (b)B (c)C (d)D

2)

**A,B,C,D are 4 friends who do not mind exchanging items. A had 2 chessboards each costing Rs. 500 and a record player. C originally had a cycle and a walk man. each cricket bat costs Rs.700. Both D,C got a cricket bat from B. A gave his record player costing Rs.2000 to B.C got a camera costing Rs.1500 from D.The cycle costs Rs. 1000 and the Walkman costs Rs.700.B had 3 cricket bats initially.D had 2 cameras total cost of which is Rs.5000. A gave one of his chess boards to C and took C's cycle.C gave his walkman to D.**(2006 MBA)2.4)who made profit after the transactions..?

(a)A,B (b)A,D (c)B,C (d)C,D

2.5)After the transaction, who had items total cost of Rs. 1500?

(a)A (b)B (c)C (d)D

cooltwins · Nov 24, 2009

Rank B1 - LEADER

3)

**In a certain coding system...**

'816321' means 'the brown dog frightened the cat'

'64851' means 'the frightened cat ran away'

'7621'means 'the cat was brown'

'341' means 'the dog ran'

what is the code for 'the dog was frightened'?'816321' means 'the brown dog frightened the cat'

'64851' means 'the frightened cat ran away'

'7621'means 'the cat was brown'

'341' means 'the dog ran'

what is the code for 'the dog was frightened'?

Rohan_sK · Nov 24, 2009

Rank C2 - EXPERT

Answers:

1. A

2. 1700

3. A

1. A

2. 1700

3. A

Saandeep Sreerambatla · Nov 24, 2009

Rank A2 - PRO

4. C

5. A

5. A

Saandeep Sreerambatla · Nov 24, 2009

Rank A2 - PRO

Rohan_sKAnswers:

1. A

2. 1700

3. A

Guess these are correct !!!

cooltwins · Nov 24, 2009

Rank B1 - LEADER

Rohan_sKAnswers:

1. A

2. 1700

3. A

awesome going guys you got all the answers right.....😁English-Scared4. C

5. A

**ANSWERS:**

2.1)Who did not have a cricket bat at the end?

**(a)A,**(b)B, (c)C, (d)D

2.2)Total cost of materials C had in the begining?

(a)Rs.5000,(b)Rs.3000,(c)Rs.2100,

**(d)Rs.1700**

2.3)who incurred the maximum loss in the transaction?

(a)D

**(b)A**(c)C (d)B

2.4)who made profit after the transactions..?

(a)A,B (b)A,D

**(c)B,C**(d)C,D

2.5)After the transaction, who had items total cost of Rs. 1500?

**(a)A**(b)B (c)C (d)D

p.s: it would be better if you could also use the options when you give the answers.:smile:

cooltwins · Nov 24, 2009

Rank B1 - LEADER

Hey guys the 3rd question remains unanswered....

yadavundertaker mohit · Nov 24, 2009

Rank B2 - LEADER

cooltwins3)In a certain coding system...

'816321' means 'the brown dog frightened the cat'

'64851' means 'the frightened cat ran away'

'7621'means 'the cat was brown'

'341' means 'the dog ran'

what is the code for 'the dog was frightened'?

3241

is it right?.

cooltwins · Nov 24, 2009

Rank B1 - LEADER

no yadav.

just try checking it again leisurely 😀

just try checking it again leisurely 😀

CIVILPRINCESS · Nov 24, 2009

Rank A3 - PRO

Is the answer for the 3rd question:

(i mean it can be in any order.)

is it right?

**1378**(i mean it can be in any order.)

is it right?

cooltwins · Nov 24, 2009

Rank B1 - LEADER

yeah you are right princess...😀

the answer for the 3rd question is : 1378

the answer for the 3rd question is : 1378

cooltwins · Nov 25, 2009

Rank B1 - LEADER

now to go on to the next set of questions.... 😛

(a) X^2/y^3 (b) x^3/y^2 (c) y^2/x^3 (d) y^3/x^2

^- to the power of.

**4)if x men, working x hours per day, can do x units of work in x days then y men, working y hours per day would be able to complete how many units of work in y days?**(a) X^2/y^3 (b) x^3/y^2 (c) y^2/x^3 (d) y^3/x^2

^- to the power of.

cooltwins · Nov 25, 2009

Rank B1 - LEADER

**5)the front wheels of a wagon are 2(pi) feet in circumference and the rear wheels are 3(pi) feet in circumference. When the front wheels have made 10 more revolutions than the rear wheels how many feet has the wagon travelled?**

(a)30(pi) (b)60(pi) (c)90(pi) (d)150(pi)

(a)30(pi) (b)60(pi) (c)90(pi) (d)150(pi)

(pi)-3.14

CIVILPRINCESS · Nov 25, 2009

Rank A3 - PRO

Let x be the distance moved...cooltwins5)the front wheels of a wagon are 2(pi) feet in circumference and the rear wheels are 3(pi) feet in circumference. When the front wheels have made 10 more revolutions than the rear wheels how many feet has the wagon travelled?

(a)30(pi) (b)60(pi) (c)90(pi) (d)150(pi)

(pi)-3.14

so the first wheel moves x/2(pi) revolutions.

2nd one moves x/3(pi) revolutions.

if the diff. in revolutions is 10

then 10=x/2(pi)-x/3(pi) =x/6(pi) => x=60(pi).

so the answer is

**(b) 60(pi)**

hope it is correct😀

cooltwins · Nov 25, 2009

Rank B1 - LEADER

yeah right princess....😀

what about the 4th one?

that is yet to be answered.😀

what about the 4th one?

that is yet to be answered.😀

cooltwins · Nov 25, 2009

Rank B1 - LEADER

hey guys what happened ....😔

no takers for the 4th question😕

it is an easy one try it......

no takers for the 4th question😕

it is an easy one try it......

CIVILPRINCESS · Nov 26, 2009

Rank A3 - PRO

work done by the x-group =x*x*x-------(1)cooltwinsnow to go on to the next set of questions.... 😛

4)if x men, working x hours per day, can do x units of work in x days then y men, working y hours per day would be able to complete how many units of work in y days?

(a) X^2/y^3 (b) x^3/y^2 (c) y^2/x^3 (d) y^3/x^2

^- to the power of.

work done by the y-group =y*y*y-------(2)

(2)/(1)=>

y^3

x^3

but units of work done by x-group is x

let units of work done by y-group be a

=>

y^3=a

x^3 x

=>a=y^3 / x^2

so is the solution

**4)y^3 / x^2**

CIVILPRINCESS · Nov 26, 2009

Rank A3 - PRO

correct na....?

CIVILPRINCESS · Nov 26, 2009

Rank A3 - PRO

nice set of questions.....

cooltwins · Nov 26, 2009

Rank B1 - LEADER

you are right......😀

cooltwins · Nov 26, 2009

Rank B1 - LEADER

now for the next set of questions.......

5)

5)

**a car travelling 5/7th of its actual speed covers 42 km in 1hr 40 min 48 sec.find the actual speed of the car......:?:**cooltwins · Nov 26, 2009

Rank B1 - LEADER

6)

**Pipe A can fill a tank in 20 minutes.Pipe A and B are opened and after 6 minutes Pipe A is closed.now the pipe B takes 15 more min. to fill the tank . in how many min. can the pipe B fill the tank....:?:**shubhrajeet tiwa · Nov 26, 2009

Rank D3 - MASTER

ans for code breaking

i think it is :

i think it is :

**1378**tech addict · Nov 26, 2009

Rank E1 - BEGINNER

cooltwins2nd question continued....

2)A,B,C,D are 4 friends who do not mind exchanging items. A had 2 chessboards each costing Rs. 500 and a record player. C originally had a cycle and a walk man. each cricket bat costs Rs.700. Both D,C got a cricket bat from B. A gave his record player costing Rs.2000 to B.C got a camera costing Rs.1500 from D.The cycle costs Rs. 1000 and the Walkman costs Rs.700.B had 3 cricket bats initially.D had 2 cameras total cost of which is Rs.5000. A gave one of his chess boards to C and took C's cycle.C gave his walkman to D.(2006 MBA)

2.4)who made profit after the transactions..?

(a)A,B (b)A,D (c)B,C (d)C,D

2.5)After the transaction, who had items total cost of Rs. 1500?

(a)A (b)B (c)C (d)D

the answers are:-

2.4-c- B,C

2.5-a- A

cooltwins · Nov 26, 2009

Rank B1 - LEADER

shubhrajeet tiwaans for code breaking

i think it is :

1378

your answers are all right.👍tech addictthe answers are:-

2.4-c- B,C

2.5-a- A

now go ahead with the unsolved problems......😁

sarveshgupta · Nov 26, 2009

Rank B1 - LEADER

Answer: 30 mincooltwins6)Pipe A can fill a tank in 20 minutes.Pipe A and B are opened and after 6 minutes Pipe A is closed.now the pipe B takes 15 more min. to fill the tank . in how many min. can the pipe B fill the tank....:?:

Is it correct?

cooltwins · Nov 26, 2009

Rank B1 - LEADER

yep your ans is correct 👍sarveshguptaAnswer: 30 min

Is it correct?

try to give the explanation and do go ahead with the rest of the sums.😀

anuraadha · Nov 26, 2009

Rank C2 - EXPERT

2)Answers

1.(a)A

2.1700

3.A

4.B,C

5.A

what is the answer?

1.(a)A

2.1700

3.A

4.B,C

5.A

what is the answer?

cooltwins · Nov 27, 2009

Rank B1 - LEADER

yes your answer is right. 👍anuraadha2)Answers

1.(a)A

2.1700

3.A

4.B,C

5.A

what is the answer?

and the fifth question remains unanswered...

CIVILPRINCESS · Nov 27, 2009

Rank A3 - PRO

Let x be the average speed.cooltwinsnow for the next set of questions.......

5)a car travelling 5/7th of its actual speed covers 42 km in 1hr 40 min 48 sec.find the actual speed of the car......:?:

its present velocity is v=5x/7.

the distance s=42km.

the time taken is,t=1hr40min48sec=1.68hr

speed is v=s/t

5x/7=42/1.68=25

=>x=7X25/5=35km/hr

so is the answer

**35km/hr**?

cooltwins · Dec 1, 2009

Rank B1 - LEADER

yep the answer is correct...👍

sorry for the delay in the reply......😔

just caught up for a few days.... and got time only today......😀

sorry for the delay in the reply......😔

just caught up for a few days.... and got time only today......😀

cooltwins · Dec 1, 2009

Rank B1 - LEADER

7)

sorry for the delay in the questions😀

**now find the next number in the series.....:**

72,53,34,25,......72,53,34,25,......

sorry for the delay in the questions😀

cooltwins · Dec 1, 2009

Rank B1 - LEADER

8)

think...think...😀

**here are two questions in the form of a string of letters try and find out the gaps...**

1. A c f j o u?

2. B l d m f n h o ??1. A c f j o u?

2. B l d m f n h o ??

think...think...😀

cooltwins · Dec 1, 2009

Rank B1 - LEADER

9)

**A goldsmith has 5 gold rings each having a different weight. Ring 1 weighing twice as much as ring 2. Ring 2 is weighing four and one-half times as much as ring 3. Ring 3 is weighing half as much as ring 4. Ring 4 is weighing half as much as ring 5. Ring 5 is weighing less than ring 1 but more than ring 3. Then which of them have the lightest weight?**yadavundertaker mohit · Dec 1, 2009

Rank B2 - LEADER

7) 16

is it correct?

is it correct?

yadavundertaker mohit · Dec 1, 2009

Rank B2 - LEADER

Here's my answer to question 9) ring 3 is lightest... Just want someone to confirm whether it's correct. Anyone?

cooltwins · Dec 1, 2009

Rank B1 - LEADER

no yadav i don't think it is correctyadavundertaker7) 16

is it correct?

anyway how did you arrive at that solution..?

because there is no steadfast approach a series question and who knows you may have got another formula...😀

cooltwins · Dec 1, 2009

Rank B1 - LEADER

yep you are right..👍yadavundertaker9) ring 3 is lightest..

cooltwins · Dec 1, 2009

Rank B1 - LEADER

the 8th question remains unanswered..?

cooltwins · Dec 2, 2009

Rank B1 - LEADER

8th question remains unanswered...but i am giving the next two questions.

**10)Three farmers paid rs.1000 for a small pasture. one farmer grazed his 9 mules, another his 12 cows for twice the time and last man put in some goats for 2.5 times as the second man’s cow and paid half the cost of the pasture.**

Can you find out how many goats did the last man have,if 6 cows eat as much as 4 mules and 10 goats as much as 3 cows?and how much did the first and second man each pay?Can you find out how many goats did the last man have,if 6 cows eat as much as 4 mules and 10 goats as much as 3 cows?and how much did the first and second man each pay?

cooltwins · Dec 2, 2009

Rank B1 - LEADER

**11)A five feet long staff casts a shadow 2 feet long.can you find the height of a steeple whose shadow at the same hour is 120 ft long?**

three questions to be answered are 8,10,11.all the best!👍

Saandeep Sreerambatla · Dec 2, 2009

Rank A2 - PRO

1. B or Z ( not very sure)cooltwins8)here are two questions in the form of a string of letters try and find out the gaps...

1. A c f j o u?

2. B l d m f n h o ??

think...think...😀

2. J P

Logic.. A to C the letters in between 1 so on going we get the difference as 2 ,3 ,4 ,5 so if we consider next is 6 we get as B if not lets go back to 4 then its Z.

For second one the sequence is +9 -7 +8 -6 +7 -5 +6 -4 and +5

Saandeep Sreerambatla · Dec 2, 2009

Rank A2 - PRO

If we calculate tanx = 5/2

if we calculate it we get 300.

if we calculate it we get 300.

sarveshgupta · Dec 2, 2009

Rank B1 - LEADER

Yes ES i too will like to go with your answersEnglish-Scared1. B or Z ( not very sure)

2. J P

Logic.. A to C the letters in between 1 so on going we get the difference as 2 ,3 ,4 ,5 so if we consider next is 6 we get as B if not lets go back to 4 then its Z.

For second one the sequence is +9 -7 +8 -6 +7 -5 +6 -4 and +5

Well what do you mean by the explanation of second i am unable to figure out what are you trying to say?

It was easy by way of looking at it carefully

cooltwins · Dec 2, 2009

Rank B1 - LEADER

yes es you are right...👍English-Scared1. B or Z ( not very sure)

2. J P

Logic.. A to C the letters in between 1 so on going we get the difference as 2 ,3 ,4 ,5 so if we consider next is 6 we get as B if not lets go back to 4 then its Z.

For second one the sequence is +9 -7 +8 -6 +7 -5 +6 -4 and +5

and the first one is B only......😀

and for the 2nd set make this series into two by grouping the alternate terms.

then it is really simple i believe.....😛

cooltwins · Dec 2, 2009

Rank B1 - LEADER

yep you are right😀English-ScaredIf we calculate tanx = 5/2

if we calculate it we get 300.

yadavundertaker mohit · Dec 2, 2009

Rank B2 - LEADER

cooltwinsno yadav i don't think it is correct

anyway how did you arrive at that solution..?

because there is no steadfast approach a series question and who knows you may have got another formula...😀

logic 1

72-34=38

53-25=28

34-x=18

on solving we get x= 16

cooltwins · Dec 3, 2009

Rank B1 - LEADER

yeah this does work out....but that is not the required logic....yadavundertakerlogic 1

72-34=38

53-25=28

34-x=18

on solving we get x= 16

ok,now i will give you the next term and now try and find the logic😀

old series is 72,53,34,25,......the new series (after the inclusion of next term ) is

72,53,34,25,

**29**.

now does this sound better try it .........

looking forward to the logic.😀

cooltwins · Dec 3, 2009

Rank B1 - LEADER

so 7th one's required logic is yet to be answered and 10th one remains untouched....

think.....think... ceans

think.....think... ceans

cooltwins · Dec 4, 2009

Rank B1 - LEADER

**12)A person has Rs 100/- in his pocket, he can as 25 pencils or 15books.He kept 15% of the money for travelling expenses and purchased 5 pencils.So how many books he can purchase with the remaining money. a) 4 b) 3 c) 5 d)none**:?😔from an IBM aptitude paper...)

cooltwins · Dec 4, 2009

Rank B1 - LEADER

**13)Find the next two numbers of the sequence given below**

1,11,100,121,221, ___ , ___

1,11,100,121,221, ___ , ___

this is a tough one....:evil:

but think....think......👍

ratikagoel · Dec 4, 2009

Rank D3 - MASTER

cooltwins12)A person has Rs 100/- in his pocket, he can as 25 pencils or 15books.He kept 15% of the money for travelling expenses and purchased 5 pencils.So how many books he can purchase with the remaining money. a) 4 b) 3 c) 5 d)none:?😔from an IBM aptitude paper...)

@12

ans: d) none

ratikagoel · Dec 4, 2009

Rank D3 - MASTER

@7cooltwins7)now find the next number in the series.....:

72,53,34,25,......

answer 29

cooltwins · Dec 4, 2009

Rank B1 - LEADER

ratikagoel@12

ans: d) none

hey ratika...ratikagoel@7

answer 29

please do provide the solution along with the reasoning and method of solving😁

ratikagoel · Dec 4, 2009

Rank D3 - MASTER

ya sure y not

for 7th ques

for 7th ques

**72,53,34,25,......****7^2+2^2=53****5^2+3^2=34****3^2+4^2=25****so****2^2+5^2=29**ratikagoel · Dec 4, 2009

Rank D3 - MASTER

for 12th ques

25 pencils = 100 , so each pencil is Rs 4/-

15 books = 100, so each book is 100/15

Now, he has kept aside 15%, that is 15 Rs

So, he is left with 85 rs

nd den he bought 5 pencils dat cost him 20rs

nw remaining money is 85-20=65

1 book is of rs ~6.6

X = 65 * 15 / 100 = 39/4 ~ 9

with 65 rs he can buy 9 books

So, answer is none.

25 pencils = 100 , so each pencil is Rs 4/-

15 books = 100, so each book is 100/15

Now, he has kept aside 15%, that is 15 Rs

So, he is left with 85 rs

nd den he bought 5 pencils dat cost him 20rs

nw remaining money is 85-20=65

1 book is of rs ~6.6

X = 65 * 15 / 100 = 39/4 ~ 9

with 65 rs he can buy 9 books

So, answer is none.

cooltwins · Dec 4, 2009

Rank B1 - LEADER

ratikagoelfor 12th ques

25 pencils = 100 , so each pencil is Rs 4/-

15 books = 100, so each book is 100/15

Now, he has kept aside 15%, that is 15 Rs

So, he is left with 85 rs

nd den he bought 5 pencils dat cost him 20rs

nw remaining money is 85-20=65

1 book is of rs ~6.6

X = 65 * 15 / 100 = 39/4 ~ 9

with 65 rs he can buy 9 books

So, answer is none.

yes.....😀ratikagoelya sure y not

for 7th ques

72,53,34,25,......

7^2+2^2=53

5^2+3^2=34

3^2+4^2=25

so

2^2+5^2=29

good going ratika.........👍

and why don't you try the 10th and the 13th question......

ps: avoid usind SMS language in the forum. it is against the forum rules.....😀

good luck with the rest of the problems😀

ratikagoel · Dec 4, 2009

Rank D3 - MASTER

i m trying them too

**cooltwins**ratikagoel · Dec 4, 2009

Rank D3 - MASTER

in btw keep on posting ques yr

cooltwins · Dec 4, 2009

Rank B1 - LEADER

sure will post more.....but don't use SMS language .....:smile:ratikagoelin btw keep on posting ques yr

ratikagoel · Dec 4, 2009

Rank D3 - MASTER

ok

i will keep it my mind while replying or posting

i will keep it my mind while replying or posting

ratikagoel · Dec 4, 2009

Rank D3 - MASTER

answer for 13th ques.

253 and 364

is it correct?

253 and 364

is it correct?

ratikagoel · Dec 4, 2009

Rank D3 - MASTER

1,11,100,121,221,253,364

100-1=99

121-11=110

nd

similarly

221-100=121

so let next term is x

ie x-121=y

nd y-121=11

so y=132

therefore

x=132+121=253

similarly for next term

x-221=y

y-132=11

y=143

x=221+143=364

100-1=99

121-11=110

nd

**110-99=11**similarly

221-100=121

**121-110=11**so let next term is x

ie x-121=y

nd y-121=11

so y=132

therefore

x=132+121=253

similarly for next term

x-221=y

y-132=11

y=143

x=221+143=364

cooltwins · Dec 4, 2009

Rank B1 - LEADER

awesome ratika........:clap:ratikagoelanswer for 13th ques.

253 and 364

is it correct?

you are indeed right......👍

and 10th question is still unanswered.........😀

why don't you try it......😛

ratikagoel · Dec 5, 2009

Rank D3 - MASTER

thanks cooltwins

cooltwins · Dec 5, 2009

Rank B1 - LEADER

and here is a question for you people......

it was set as challenge and we are yet to discover the answers....

and i believe the brilliant minds here can surely solve this question.....👍

(because you are all the

try and solve this i am trying them myself too😲

and don't forget 10th one remains too.....

it was set as challenge and we are yet to discover the answers....

and i believe the brilliant minds here can surely solve this question.....👍

(because you are all the

**cooltwin's aptitude center students**😉 😁.....just kidding)**14) ###**

X###

--------

##11

33##

##22

----------

#3####X###

--------

##11

33##

##22

----------

#3####

try and solve this i am trying them myself too😲

and don't forget 10th one remains too.....

cooltwins · Dec 5, 2009

Rank B1 - LEADER

just solved the 14th one....:dance:

that's how i did it.......took a whole hour to solve it.....

**TIP:**try using a template written in pen and try diff combos in pencil till you get it right...😉that's how i did it.......took a whole hour to solve it.....

ratikagoel · Dec 6, 2009

Rank D3 - MASTER

cooltwinsand here is a question for you people......

it was set as challenge and we are yet to discover the answers....

and i believe the brilliant minds here can surely solve this question.....👍

(because you are all thecooltwin's aptitude center students😉 😁.....just kidding)

14) ###

X###

--------

##11

33##

##22

----------

#3####

try and solve this i am trying them myself too😲

and don't forget 10th one remains too.....

answer of 14th ques

837

X643

-----------

2511

3348X

5022XX

-----------

538191

----------😁

sarveshgupta · Dec 6, 2009

Rank B1 - LEADER

Here is one question

15) A monkey starts climbing up a tree 20ft. tall. Each hour, it hops 3ft. and slips back 2ft. How much time would it take the monkey to reach the top?

15) A monkey starts climbing up a tree 20ft. tall. Each hour, it hops 3ft. and slips back 2ft. How much time would it take the monkey to reach the top?

sarveshgupta · Dec 6, 2009

Rank B1 - LEADER

Is the answer for the 10th question

**25 goats**?CIVILPRINCESS · Dec 6, 2009

Rank A3 - PRO

So the relative movement per hour will be 1 ft.sarveshguptaHere is one question

15) A monkey starts climbing up a tree 20ft. tall. Each hour, it hops 3ft. and slips back 2ft. How much time would it take the monkey to reach the top?

in 17 hours it climbs 17 ft.

in the 18th hour it climbs 3 ft. and reaches 20 ft.

so the answer is

**18 hours.**

cooltwins · Dec 6, 2009

Rank B1 - LEADER

awesome ratika....:clap:ratikagoelanswer of 14th ques

837

X643

-----------

2511

3348X

5022XX

-----------

538191

----------😁

great going........👍

try solving the 10th one.......

cooltwins · Dec 6, 2009

Rank B1 - LEADER

hey sarvesh.....sarveshguptaIs the answer for the 10th question25 goats?

you haven't answered the entire question.....😀

and yeah i do appreciate you posting questions in this thread....👍

so come up with the entire solution for the 10th one........

sarveshgupta · Dec 6, 2009

Rank B1 - LEADER

You are absolutely right CPCIVILPRINCESSSo the relative movement per hour will be 1 ft.

in 17 hours it climbs 17 ft.

in the 18th hour it climbs 3 ft. and reaches 20 ft.

so the answer is18 hours.

sarveshgupta · Dec 6, 2009

Rank B1 - LEADER

Ok then the answer should becooltwinshey sarvesh.....

you haven't answered the entire question.....😀

and yeah i do appreciate you posting questions in this thread....👍

so come up with the entire solution for the 10th one........

The third man had

**25 goats**

the first farmer paid

**Rs 180**while the second man paid

**Rs 320**

Am I right now? 😁

cooltwins · Dec 8, 2009

Rank B1 - LEADER

awesome sarvesh..:clap:sarveshguptaOk then the answer should be

The third man had25 goats

the first farmer paidRs 180while the second man paidRs 320

Am I right now? 😁

you are right...👍

atlast the 10th question is answered...

will upload more questions soon😀

cooltwins · Dec 8, 2009

Rank B1 - LEADER

16)You walk upwards on an escalator, with a speed of 1 step per second.

After 50 steps you are at the end.

You turn around and run downwards with a speed of 5 steps per second.

After 125 steps you are back at the beginning of the escalator.

The escalator is moving upward with a speed of 1 step per second.

After 50 steps you are at the end.

You turn around and run downwards with a speed of 5 steps per second.

After 125 steps you are back at the beginning of the escalator.

The escalator is moving upward with a speed of 1 step per second.

**Question:****How many steps do you need if the escalator stands still?**

Saandeep Sreerambatla · Dec 9, 2009

Rank A2 - PRO

IS the answer 100 ?

cooltwins · Dec 9, 2009

Rank B1 - LEADER

yeah your answer is correct ES....👍English-ScaredIS the answer 100 ?

do try and give the explanation..........😒

cooltwins · Dec 9, 2009

Rank B1 - LEADER

**17)Find the odd one out…:?:**

19,28,39,52,67,84,102.

(a)52 (b)102 (c)84 (d)67

19,28,39,52,67,84,102.

(a)52 (b)102 (c)84 (d)67

cooltwins · Dec 9, 2009

Rank B1 - LEADER

**18)Find the odd one out…:?:**

888,440,216,104,48,22,6.

(a)440 (b)216 (c)104 (d)48 (e)22

888,440,216,104,48,22,6.

(a)440 (b)216 (c)104 (d)48 (e)22

cooltwins · Dec 9, 2009

Rank B1 - LEADER

**19)Find the odd one out…:?:**

2807,1400,697,347,171,84,41,20

(a)697 (b)347 (c)171 (d)84 (e)12

2807,1400,697,347,171,84,41,20

(a)697 (b)347 (c)171 (d)84 (e)12

cooltwins · Dec 9, 2009

Rank B1 - LEADER

**20)One morning I was on my way to the market…i met a man who had four wives each wife had four baskets containing four dogs.each dog had four puppies . taking this into consideration how many were going to the market…. :?:**

so four questions for you to solve....😀

SO GET SOLVING..........👍

sarveshgupta · Dec 9, 2009

Rank B1 - LEADER

Answer is b)cooltwins17)Find the odd one out…:?:

19,28,39,52,67,84,102.

(a)52 (b)102 (c)84 (d)67

**102**

sarveshgupta · Dec 9, 2009

Rank B1 - LEADER

Answer is e)cooltwins18)Find the odd one out…:?:

888,440,216,104,48,22,6.

(a)440 (b)216 (c)104 (d)48 (e)22

**22**

sarveshgupta · Dec 9, 2009

Rank B1 - LEADER

Only two people you and the man you metcooltwins20)One morning I was on my way to the market…i met a man who had four wives each wife had four baskets containing four dogs.each dog had four puppies . taking this into consideration how many were going to the market…. :?:

so four questions for you to solve....😀

SO GET SOLVING..........👍

ratikagoel · Dec 10, 2009

Rank D3 - MASTER

cooltwins20)One morning I was on my way to the market…i met a man who had four wives each wife had four baskets containing four dogs.each dog had four puppies . taking this into consideration how many were going to the market…. :?:

so four questions for you to solve....😀

SO GET SOLVING..........👍

answer:

only myself

ratikagoel · Dec 10, 2009

Rank D3 - MASTER

answercooltwins19)Find the odd one out…:?:

2807,1400,697,347,171,84,41,20

(a)697 (b)347 (c)171 (d)84 (e)12

(b)347

41%20=1

84%41=2

171%84=3

so

347%171=5 which is wrong

😁

cooltwins · Dec 10, 2009

Rank B1 - LEADER

sarveshguptaAnswer is b)102

yeah right.....👍sarveshguptaAnswer is e)22

what about the explanation sarvesh....:?:

cooltwins · Dec 10, 2009

Rank B1 - LEADER

no sarvesh you fell for the trick....😀sarveshguptaOnly two people you and the man you met

you are the only person who goes to the market....you only meet the other person on the way...😉

so the answer is only one...

cooltwins · Dec 10, 2009

Rank B1 - LEADER

yes you are right ratika👍ratikagoelanswer:

only myself

cooltwins · Dec 10, 2009

Rank B1 - LEADER

yup your answer is right ratika😀ratikagoelanswer

(b)347

41%20=1

84%41=2

171%84=3

so

347%171=5 which is wrong

😁

cooltwins · Dec 13, 2009

Rank B1 - LEADER

sorry for the delay to post the next question guys.......

no broadband connection for 2 days due to some signal problem ........

anyway here goes the next question.....

no broadband connection for 2 days due to some signal problem ........

anyway here goes the next question.....

**21) probability of a bomb hitting a target is 1/5**

2 bombs are required to blast off a bridge.

if 6 bombs are aimed at the bridge ........ find the probability that the bridge is destroyed........:?:2 bombs are required to blast off a bridge.

if 6 bombs are aimed at the bridge ........ find the probability that the bridge is destroyed........:?:

cooltwins · Dec 13, 2009

Rank B1 - LEADER

and guys please do post your logic when you solve some question......

you can follow the format:

it would be more clear this way......😀

you can follow the format:

**question no.) (option if provided) ans.**

LOGIC:

- - - - - - - - - -LOGIC:

- - - - - - - - - -

it would be more clear this way......😀

cooltwins · Dec 16, 2009

Rank B1 - LEADER

hey guys what happened to the 21st question.:?:

no takers?

anyway here goes the 22nd one:

put your thinking caps on.....

no takers?

anyway here goes the 22nd one:

**22) what next...?**

(1,2) (5,10) (15,30) (37,74) ...............

(a) (80,160) (b) (82,164) (c) (83,166) (d) (84,168)(1,2) (5,10) (15,30) (37,74) ...............

(a) (80,160) (b) (82,164) (c) (83,166) (d) (84,168)

put your thinking caps on.....

cooltwins · Dec 16, 2009

Rank B1 - LEADER

and here is the 23rd one....

**23) in a chess tournament each player plays with every other player exactly once and a total of 190 games were played.so how many players participated in the tournament?**

(a)21 (b)20 (c)19 (d)18(a)21 (b)20 (c)19 (d)18

dazzling · Dec 16, 2009

Rank D2 - MASTER

Answer of Qstn 22> it is c) 83,166

solution : 5-1=4

15-5=10

37-15=22

4*2+2=10

10*2+2=22

22*2+2=46

46+37=83

rite?"?

solution : 5-1=4

15-5=10

37-15=22

4*2+2=10

10*2+2=22

22*2+2=46

46+37=83

rite?"?

dazzling · Dec 16, 2009

Rank D2 - MASTER

19 players have played games

hence answer is c)19

hence answer is c)19

cooltwins · Dec 16, 2009

Rank B1 - LEADER

YEP YOU ARE RIGHT DAZZLING....👍dazzlingAnswer of Qstn 22> it is c) 83,166

solution : 5-1=4

15-5=10

37-15=22

4*2+2=10

10*2+2=22

22*2+2=46

46+37=83

rite?"?

cooltwins · Dec 16, 2009

Rank B1 - LEADER

hey dazzling.....dazzling19 players have played games

hence answer is c)19

just try checking the 23rd question once more....😉

Gurjeet Singh · Dec 16, 2009

Rank B1 - LEADER

its question 23 :by using permutation ,combination

the equation is (n C 2) means n!/((n-2)!*2!)=190

so its a quardatic ,and answer is 20.

the equation is (n C 2) means n!/((n-2)!*2!)=190

so its a quardatic ,and answer is 20.

cooltwins · Dec 16, 2009

Rank B1 - LEADER

Yeah right cooldudeiet👍cooldudeietits question 23 :by using permutation ,combination

the equation is (n C 2) means n!/((n-2)!*2!)=190

so its a quardatic ,and answer is 20.

way to go......

go on to the next questions....

Gurjeet Singh · Dec 16, 2009

Rank B1 - LEADER

21: (6 C 2) (1/5)pow2*(1-1/5)pow4 its a binomial distribution

so after solving 768/3125

am i right?

so after solving 768/3125

am i right?

cooltwins · Dec 16, 2009

Rank B1 - LEADER

yup you are absolutely right...great going👍cooldudeiet21: (6 C 2) (1/5)pow2*(1-1/5)pow4 its a binomial distribution

so after solving 768/3125

am i right?

cooltwins · Dec 16, 2009

Rank B1 - LEADER

**24) The needle of a compass is turned in such a manner that the pointer which was pointing 45 degrees clockwise from south is now showing north. a person went towards the geographical east as per the above compass. in what direction did he want to go?**

(a) south west (b)north west (c)north east (d)south east

(a) south west (b)north west (c)north east (d)south east

cooltwins · Dec 16, 2009

Rank B1 - LEADER

Here is the grand

**25th question of cooltwins aptitude centre**:clap: :dance: :clap:

25) A,B,C,D,E are five cars and P,Q,R are 3 motorcycles.

A is the fastest of the cars.and R is the slowest of the motorcycles.

C is costlier than D and Q but cheaper than B.

Among the cars A is not the costliest.

D is cheaper than E and there is no car whose cost lies between these two.

E is faster than 3 of the cars and all of the motor cycles.

Q is costlier than R but cheaper than P.

P is faster than Q.

25.1)which of the following cars can not stand exactly in the center position as far as the cost is concerned?

(a)A (b)C (c)E (d)D

25.2) which of the following is true?

(a)P is the costliest as well as fastest.

(b)fastest motorcycle is not the costliest

(c) slowest motorcycle is the cheapest one.

(d) both (a) and (c)

25) A,B,C,D,E are five cars and P,Q,R are 3 motorcycles.

A is the fastest of the cars.and R is the slowest of the motorcycles.

C is costlier than D and Q but cheaper than B.

Among the cars A is not the costliest.

D is cheaper than E and there is no car whose cost lies between these two.

E is faster than 3 of the cars and all of the motor cycles.

Q is costlier than R but cheaper than P.

P is faster than Q.

25.1)which of the following cars can not stand exactly in the center position as far as the cost is concerned?

(a)A (b)C (c)E (d)D

25.2) which of the following is true?

(a)P is the costliest as well as fastest.

(b)fastest motorcycle is not the costliest

(c) slowest motorcycle is the cheapest one.

(d) both (a) and (c)

cooltwins · Dec 16, 2009

Rank B1 - LEADER

continuation of 25th question.:

**25) A,B,C,D,E are five cars and P,Q,R are 3 motorcycles.**

A is the fastest of the cars.and R is the slowest of the motorcycles.

C is costlier than D and Q but cheaper than B.

Among the cars A is not the costliest.

D is cheaper than E and there is no car whose cost lies between these two.

E is faster than 3 of the cars and all of the motor cycles.

Q is costlier than R but cheaper than P.

P is faster than Q.

25.3) if P is the costliest than E how many cars are cheaper than P?

(a) 1 (b)2 (c)3 (d)cannot be determined.

25.4)if P is cheaper than A which is not costlier than E , which of these is the cheapest of all cars and motorcycles put together?

(a)R (b)Q (c)E (d)cannot be determined.

25.5) which of these is the slowest of the cars, if B and C are faster than D?

(a) B (b) D (c) E (d) A

A is the fastest of the cars.and R is the slowest of the motorcycles.

C is costlier than D and Q but cheaper than B.

Among the cars A is not the costliest.

D is cheaper than E and there is no car whose cost lies between these two.

E is faster than 3 of the cars and all of the motor cycles.

Q is costlier than R but cheaper than P.

P is faster than Q.

25.3) if P is the costliest than E how many cars are cheaper than P?

(a) 1 (b)2 (c)3 (d)cannot be determined.

25.4)if P is cheaper than A which is not costlier than E , which of these is the cheapest of all cars and motorcycles put together?

(a)R (b)Q (c)E (d)cannot be determined.

25.5) which of these is the slowest of the cars, if B and C are faster than D?

(a) B (b) D (c) E (d) A

patsham · Dec 16, 2009

Rank D3 - MASTER

hey i guess its c)north east...

its because initially he was at southwest...and north of southwest is north east...

M i right...???

its because initially he was at southwest...and north of southwest is north east...

M i right...???

dazzling · Dec 16, 2009

Rank D2 - MASTER

Qst 25.1 : ans : d) D

25.2 ; ans : b) fastest motorcycle is not the costliest

25.3 : ans : a) 1

25.4 : ans : a) R

25.5 : ans : b) D

rite?

25.2 ; ans : b) fastest motorcycle is not the costliest

25.3 : ans : a) 1

25.4 : ans : a) R

25.5 : ans : b) D

rite?

Guttu · Dec 16, 2009

Rank C3 - EXPERT

25.1 D

25.2 both a and c

25.3 2

25.4 cannot be determined

25.5 D

25.2 both a and c

25.3 2

25.4 cannot be determined

25.5 D

cooltwins · Dec 17, 2009

Rank B1 - LEADER

dazzlingQst 25.1 : ans : d) D

25.2 ; ans : b) fastest motorcycle is not the costliest

25.3 : ans : a) 1

25.4 : ans : a) R

25.5 : ans : b) D

rite?

hey dazzling and guttu,Guttu25.1 D

25.2 both a and c

25.3 2

25.4 cannot be determined

25.5 D

both got answers partially right...😀

but any way good going from both of you👍

here are the correct answers:

**25.1) (d) D**

25.2) (d) both A and C

25.3) (b) 2

25.4) (a)R

25.5) (b) D25.2) (d) both A and C

25.3) (b) 2

25.4) (a)R

25.5) (b) D

will post more questions soon😉

Guttu · Dec 17, 2009

Rank C3 - EXPERT

OOps... just one wrong.

cooltwins · Dec 17, 2009

Rank B1 - LEADER

doesn't matter guttu😀

wait for more competitive questions👍

wait for more competitive questions👍

dazzling · Dec 18, 2009

Rank D2 - MASTER

my first question and 26th question of this thread...

Q.26) A certain number of men can finish a piece of work in 10 days. If however there were 10 men less it will take 10 days more for the work to be finished. How many men were there originally?

a) 100

b) 110

c) 97

d) 11

please give answer with solution.

Q.26) A certain number of men can finish a piece of work in 10 days. If however there were 10 men less it will take 10 days more for the work to be finished. How many men were there originally?

a) 100

b) 110

c) 97

d) 11

please give answer with solution.

CIVILPRINCESS · Dec 18, 2009

Rank A3 - PRO

hey dazzling,dazzlingmy first question and 26th question of this thread...

Q.26) A certain number of men can finish a piece of work in 10 days. If however there were 10 men less it will take 10 days more for the work to be finished. How many men were there originally?

a) 100

b) 110

c) 97

d) 11

please give answer with solution.

are you sure that the question and the options is correct....:?:

because for a work the product of the no. of workmen and the days that they take is constant...😕

so will be getting,

(x-10)*20=x*10

20x-200=10x

10x=200

X=20

but this is not one of the options....😔

let me know if my approach is wrong.

Guttu · Dec 18, 2009

Rank C3 - EXPERT

^^^

I agree with that logic but not sure if it's true. 😲

I agree with that logic but not sure if it's true. 😲

dazzling · Dec 18, 2009

Rank D2 - MASTER

I've seen this question in one of the online aptitude tests.i was unable to get solution of this question.thats y i asked for solution. i also dont knw how to solve it. but i knw the ans. ans is 110 workers. dont knw how.

CIVILPRINCESS · Dec 18, 2009

Rank A3 - PRO

hey dazzling,

in order to get 110 workers as answer, the

see and try it out with the initial time as 100 days the solution is 110.so the problem is the question i think....

check it out 😀

in order to get 110 workers as answer, the

**initial no. of days must be 100.**see and try it out with the initial time as 100 days the solution is 110.so the problem is the question i think....

check it out 😀

dazzling · Dec 18, 2009

Rank D2 - MASTER

yes you are correct.i think the initial days should be 100. good job twin.

CIVILPRINCESS · Dec 19, 2009

Rank A3 - PRO

yeah the question should be 100.😀dazzlingyes you are correct.i think the initial days should be 100. good job twin.

and what is up with the "twin" you mentioned...did you mean CEan cooltwins :?:

dazzling · Dec 19, 2009

Rank D2 - MASTER

ooops. i did a mistake here also.sorry for that.princess.that time i was in a hurry. thats y i wrote cooltwins. anyway now its your turn to post a question. i think so. its looking like something is missing in this thread without question.hope to have question soon..

cooltwins · Dec 19, 2009

Rank B1 - LEADER

hey dazzling 😀

sorry for the delay in posting the next question

heregoes the next one:

think think......

sorry for the delay in posting the next question

heregoes the next one:

**27) what is the angle between the hour hand and the minute hand when the time is 3:25?**think think......

cooltwins · Dec 19, 2009

Rank B1 - LEADER

and by the way this question has been unattended to.....😒cooltwinshey guys what happened to the 21st question.:?:

no takers?

anyway here goes the 22nd one:

22) what next...?

(1,2) (5,10) (15,30) (37,74) ...............

(a) (80,160) (b) (82,164) (c) (83,166) (d) (84,168)

put your thinking caps on.....

guys try solving this too.

cooltwins · Dec 19, 2009

Rank B1 - LEADER

anyway here goes the next one:

so there are three questions(22,27,28) in front of you to solve

and as usual get solving....👍

**28)at what time between 8 and 9 will the hands of a clock be in a straight line and not be together?**so there are three questions(22,27,28) in front of you to solve

and as usual get solving....👍

dazzling · Dec 19, 2009

Rank D2 - MASTER

I think I've given the answer of 22nd question. and you said that was rite.

According to me the answer of 27th question shud be 51 degree 36 minute.

is it right?

According to me the answer of 27th question shud be 51 degree 36 minute.

is it right?

Manish Goyal · Dec 19, 2009

Rank A2 - PRO

I am not sure but i think answer will be

b) for 21 question

am I right?

b) for 21 question

am I right?

CIVILPRINCESS · Dec 19, 2009

Rank A3 - PRO

yeah the 22nd qeustion has been answered.

and the anwer for 27th one i think is 47.5 degrees....

and the anwer for 27th one i think is 47.5 degrees....

cooltwins · Dec 19, 2009

Rank B1 - LEADER

oops looks like it was my turn to make a mistake 😳

any way you still have 2 questions

and as for the 27th question it is a toipc i myself am not too sure about the solution

the answer of CP is actually right but both of you do try and provide the logical solution.😀

any way you still have 2 questions

and as for the 27th question it is a toipc i myself am not too sure about the solution

the answer of CP is actually right but both of you do try and provide the logical solution.😀

cooltwins · Dec 19, 2009

Rank B1 - LEADER

goyal,goyal420I am not sure but i think answer will be

b) for 21 question

am I right?

i think you have made a mistake with the question no. because 21 has no option 😀

let me know of the correct question😀

Manish Goyal · Dec 19, 2009

Rank A2 - PRO

**22) what next...?**

(1,2) (5,10) (15,30) (37,74) ...............

(a) (80,160) (b) (82,164) (c) (83,166) (d) (84,168)

sorry

is the answer c) for this

(1,2) (5,10) (15,30) (37,74) ...............

(a) (80,160) (b) (82,164) (c) (83,166) (d) (84,168)

sorry

is the answer c) for this

cooltwins · Dec 19, 2009

Rank B1 - LEADER

hey goyal check out the 21st question...it has no options...so what options are you saying...please check the question number again😛

cooltwins21) probability of a bomb hitting a target is 1/5

2 bombs are required to blast off a bridge.

if 6 bombs are aimed at the bridge ........ find the probability that the bridge is destroyed........:?:

cooltwins · Dec 19, 2009

Rank B1 - LEADER

yup,you are right goyal...👍goyal42022) what next...?

(1,2) (5,10) (15,30) (37,74) ...............

(a) (80,160) (b) (82,164) (c) (83,166) (d) (84,168)

sorry

is the answer c) for this

CIVILPRINCESS · Dec 19, 2009

Rank A3 - PRO

the angle covered in every minute is 6 (since 360/60)

so when the time is 3:25,

the angle made by minutes hand with respect to the 12th hour is 5x5x6=

then the angle made by the hour hand :

for every 1 hr the angle made is 30.

so for 3 hour 90

and for 25 mins past the hour hand makes an angle of 12.5

(every hour has 5 division so 30/5=6

so for every 12 mins it moves through one division

so for 25 mins it travels a little more the 2 division

so lets take the answer as 12.5)

therefore total angle made by hour hand is

angle between the two hands is 150-102.5=

so when the time is 3:25,

the angle made by minutes hand with respect to the 12th hour is 5x5x6=

**150**.then the angle made by the hour hand :

for every 1 hr the angle made is 30.

so for 3 hour 90

and for 25 mins past the hour hand makes an angle of 12.5

(every hour has 5 division so 30/5=6

so for every 12 mins it moves through one division

so for 25 mins it travels a little more the 2 division

so lets take the answer as 12.5)

therefore total angle made by hour hand is

**102.5**angle between the two hands is 150-102.5=

**47.5**dazzling · Dec 19, 2009

Rank D2 - MASTER

i got the ans for 28th question .

ans is 8hrs 10.9090 mins.

am i right??

ans is 8hrs 10.9090 mins.

am i right??

cooltwins · Dec 19, 2009

Rank B1 - LEADER

yeah right CP.

and lets move on to more questions.

and lets move on to more questions.

**28) A train running at 54 kmph takes 20 seconds to pass a platform . it takes 12 secs to pass a man walking at 6kmph in same direction in which train is going.Find the length of the train and the length of the platform?**cooltwins · Dec 19, 2009

Rank B1 - LEADER

yeah you are right dazzling...👍dazzlingi got the ans for 28th question .

ans is 8hrs 10.9090 mins.

am i right??

dazzling · Dec 19, 2009

Rank D2 - MASTER

ans of 29th question:

length of train is 280 m.

length of platform is 20 m.???

length of train is 280 m.

length of platform is 20 m.???

cooltwins · Dec 19, 2009

Rank B1 - LEADER

**30)shobana's maths test had 75 problems i.e.,10 arithmetic,30 algebra,35 geometry problems.although she answered 70% of the arithmetic,40%algebra and 60% geometry problems correctly she did not pass the test because she got less than 60% of the problems right.how many more questions would she have to answer correctly to earn a 60% passing grade.?**

cooltwins · Dec 19, 2009

Rank B1 - LEADER

no dazzling the answer is not correct....dazzlingans of 29th question:

length of train is 280 m.

length of platform is 20 m.???

do try again with it.:smile:

...and provide the solution always along with the answer...😀

cooltwins · Dec 19, 2009

Rank B1 - LEADER

**31)a cone,a hemisphere, a cylinder stand on equal bases and have same height. find the ratio of their volumes.**

cooltwins · Dec 19, 2009

Rank B1 - LEADER

**32)two pipes can fill a cistern in 14 hours and 16 hours respectivly.the pipes are opened simultaneously and due to leakage it took 32 mins. more to fill the cistern.when the cistern is full in what time will the leak empty it :?:**

so four questions to be answered are :29,30,31,32.

so..think...think...😁

dazzling · Dec 19, 2009

Rank D2 - MASTER

Q.29) distance traveled by train in 20 secs =20*( 54*1000/3600 ) = 300 m

distance traveled by train in 12 secs = 12*( 54*1000/3600 ) =180 m

distance traveled by man in 12 secs = 12*( 6*1000/3600 ) =20 m

length of train = 180-20=

distance traveled by train in 12 secs = 12*( 54*1000/3600 ) =180 m

distance traveled by man in 12 secs = 12*( 6*1000/3600 ) =20 m

length of train = 180-20=

**160m**

length of platform = 300 - length of train

= 300 - 160

=length of platform = 300 - length of train

= 300 - 160

=

**140 m**dazzling · Dec 20, 2009

Rank D2 - MASTER

Q.29) shobana has to solve more 5 questions correctly to get 60% marks.

solution : 70% of 10 qst = 7

40% of 30 qst = 12

60% of 35 qst = 21

total = 40

40/75*100=53.66 %

60 % of 75 = 45

hence more questns to be solved = 45-40 = 5

Q.30) volume of cone : volume of hemisphere : volume of cylinder

height of each solid = d/2...as height of hemisphere is d/2

taking ration of each volume, we get

1 : 2 : 3

solution : 70% of 10 qst = 7

40% of 30 qst = 12

60% of 35 qst = 21

total = 40

40/75*100=53.66 %

60 % of 75 = 45

hence more questns to be solved = 45-40 = 5

Q.30) volume of cone : volume of hemisphere : volume of cylinder

height of each solid = d/2...as height of hemisphere is d/2

taking ration of each volume, we get

1 : 2 : 3

dazzling · Dec 22, 2009

Rank D2 - MASTER

Everybody is looking inactive related to aptitude.

cooltwins · Dec 22, 2009

Rank B1 - LEADER

hey dazzling the last question still remains unanswered you could have tried that..... 😀

anyway as for the answers:

anyway as for the answers:

dazzlingQ.29) distance traveled by train in 20 secs =20*( 54*1000/3600 ) = 300 m

distance traveled by train in 12 secs = 12*( 54*1000/3600 ) =180 m

distance traveled by man in 12 secs = 12*( 6*1000/3600 ) =20 m

length of train = 180-20=160m

length of platform = 300 - length of train

= 300 - 160

=140 m

yup dazzling your answer is right....👍

in qn. no. 29

yup dazzling your answer is right....👍

in qn. no. 29

**the lenght of train is 160m**

the length of platform is 140mthe length of platform is 140m

cooltwins · Dec 22, 2009

Rank B1 - LEADER

cool dazzling both your answers are right...👍dazzlingQ.29) shobanahas to solve more 5 questionscorrectly to get 60% marks.

solution : 70% of 10 qst = 7

40% of 30 qst = 12

60% of 35 qst = 21

total = 40

40/75*100=53.66 %

60 % of 75 = 45

hence more questns to be solved = 45-40 = 5

Q.30) volume of cone : volume of hemisphere : volume of cylinder

height of each solid = d/2...as height of hemisphere is d/2

taking ration of each volume, we get

1 : 2 : 3

cooltwins · Dec 26, 2009

Rank B1 - LEADER

sorry for the delay....

here is something i came across:

here is something i came across:

**33)Can you fiind the tenth number in this series?**

3, 3, 5, 4, 4, 3, 5, 5, 4, ?3, 3, 5, 4, 4, 3, 5, 5, 4, ?

cooltwins · Dec 26, 2009

Rank B1 - LEADER

one more series question:

and don't forget the 32nd question lies untouched...

come on attempt it😀

**34)find d next number of the series...**

2,10,42,130,?

2,10,42,130,?

and don't forget the 32nd question lies untouched...

come on attempt it😀

ratikagoel · Dec 27, 2009

Rank D3 - MASTER

cooltwinsone more series question:

34)find d next number of the series...

2,10,42,130,?

and don't forget the 32nd question lies untouched...

come on attempt it😀

answer is 266

2*5=10

10*4=40+2=42

42*3=126+4=130

130*2=260+6=266

ratikagoel · Dec 27, 2009

Rank D3 - MASTER

cooltwinssorry for the delay....

here is something i came across:

33)Can you fiind the tenth number in this series?

3, 3, 5, 4, 4, 3, 5, 5, 4, ?

answer is 3

two 3

one 5

two 4

one 3

two 5

one 4

two 3

Manish Goyal · Dec 27, 2009

Rank A2 - PRO

I think answer is 4cooltwinssorry for the delay....

here is something i came across:

33)Can you fiind the tenth number in this series?

3, 3, 5, 4, 4, 3, 5, 5, 4, ?

cooltwins · Dec 28, 2009

Rank B1 - LEADER

though your answer is right..... but the logic used is wrong...ratikagoelanswer is 3

two 3

one 5

two 4

one 3

two 5

one 4

two 3

try it again 😀

cooltwins · Dec 28, 2009

Rank B1 - LEADER

yeah right......👍ratikagoelanswer is 266

2*5=10

10*4=40+2=42

42*3=126+4=130

130*2=260+6=266

carry on...

cooltwins · Dec 28, 2009

Rank B1 - LEADER

what about this question guys...cooltwins32)two pipes can fill a cistern in 14 hours and 16 hours respectivly.the pipes are opened simultaneously and due to leakage it took 32 mins. more to fill the cistern.when the cistern is full in what time will the leak empty it :?:

it is not exactly a tough one...

give it a try.....

cooltwins · Dec 28, 2009

Rank B1 - LEADER

**35) A software engineer has the capability of thinking 100 lines of code in five minutes and can type 100 lines of code in 10 minutes.He takes a break for fiveminutes after every ten minutes. How many lines of codes will he complete typing after an hour:?:**

dazzling · Dec 28, 2009

Rank D2 - MASTER

cooltwins32)two pipes can fill a cistern in 14 hours and 16 hours respectivly.the pipes are opened simultaneously and due to leakage it took 32 mins. more to fill the cistern.when the cistern is full in what time will the leak empty it :?:

volume of cistern = V

volume through one pipe in 32 hrs = 32V/14

volume through another pipe in 32 hrs = 32V/16

Total volume through both pipes in 32 hrs = 32V/14+32V/16

total volume leaked = (32V/14+32V/16)-V

time required to leak above volume = 32hrs

time required to leak volume V = ?

time required = 32V/[(32V/14+32V/16)-V]

= V/[V/14+V/16-V/32]

= 1/[1/14+1/16-1/32]

= 1/[0.71428+0.0625-0.03125]

=1.34

CIVILPRINCESS · Dec 31, 2009

Rank A3 - PRO

i think the answer for this question is he typescooltwins35) A software engineer has the capability of thinking 100 lines of code in five minutes and can type 100 lines of code in 10 minutes.He takes a break for fiveminutes after every ten minutes. How many lines of codes will he complete typing after an hour:?:

**250 lines**

am i right...:?:

cooltwins · Jan 4, 2010

Rank B1 - LEADER

**36)There is a pole in a lake.One-half of the pole is in the ground, another one-third of it is covered by water, & 8 ft is out of the water.**

Then,What is the total length of the pole in ft?

Then,What is the total length of the pole in ft?

cooltwins · Jan 4, 2010

Rank B1 - LEADER

dazzlingno dazzlingcooltwins

volume of cistern = V

volume through one pipe in 32 hrs = 32V/14

volume through another pipe in 32 hrs = 32V/16

Total volume through both pipes in 32 hrs = 32V/14+32V/16

total volume leaked = (32V/14+32V/16)-V

time required to leak above volume = 32hrs

time required to leak volume V = ?

time required = 32V/[(32V/14+32V/16)-V]

= V/[V/14+V/16-V/32]

= 1/[1/14+1/16-1/32]

= 1/[0.71428+0.0625-0.03125]

=1.34

check it again

cooltwins · Jan 4, 2010

Rank B1 - LEADER

yup CP you are right.😀CIVILPRINCESSi think the answer for this question is he types250 lines

am i right...:?:

Guttu · Jan 4, 2010

Rank C3 - EXPERT

48ft :idea:cooltwins36)There is a pole in a lake.One-half of the pole is in the ground, another one-third of it is covered by water, & 8 ft is out of the water.

Then,What is the total length of the pole in ft?

cooltwins · Jan 4, 2010

Rank B1 - LEADER

yeah right guttu.....👍

cooltwins · Jan 9, 2010

Rank B1 - LEADER

hello guys, 😀

here are the next set of questions.....

here are the next set of questions.....

**37) how do get 20 by using four 4s.**

rules:-

rules:-

the operators that can be used are the basic mathematics operators which are +,-,*,/.

- there must be an operator between two 4s...i.e.you cannot use 44 or 444,etc.

- and no splitting of the number...like 2 and 2...

cooltwins · Jan 9, 2010

Rank B1 - LEADER

**38) now how do you get 1000 from eight 8s...:?:**

note :-the same rules above apply here also....😀

note :-the same rules above apply here also....😀

cooltwins · Jan 9, 2010

Rank B1 - LEADER

32)two pipes can fill a cistern in 14 hours and 16 hours respectivly.the pipes are opened simultaneously and due to leakage it took 32 mins. more to fill the cistern.when the cistern is full in what time will the leak empty itguys this question still remains unanswered.....😒

its not that tough so try it...;-)

CIVILPRINCESS · Jan 11, 2010

Rank A3 - PRO

is answercooltwins37) how do get 20 by using four 4s.

**(4+(4/4))*4**

because that becomes (4+1)*4=20

am i right...:?:

ratikagoel · Jan 14, 2010

Rank D3 - MASTER

((((8*8)+(8*8))*8)-8-8-8)cooltwins38) now how do you get 1000 from eight 8s...:?:

note :-the same rules above apply here also....😀

cooltwins · Jan 20, 2010

Rank B1 - LEADER

yeah you are right ratika...

and sorry for the delay in the next question.....

here it goes.....

and sorry for the delay in the next question.....

here it goes.....

**39) Suppose you are captain of the ship "sail away". Ship is going from India to Australia. In between Indian Ocean, after traveling for 10 hours, storm came. The only way to be safe from storm was to go back to India or go to Malaysia. But captain told that we will go straight and fortunately storm also became less aggressive. They crossed the danger and continued journey well. Can you guess the age of captain who took a strong and dangerous decision but at last won**cooltwins · Jan 20, 2010

Rank B1 - LEADER

**40)The 4 people are lined up on some steps They are all facing in the same direction. A wall seperates the fourth man from the other three.**

So to summarise :-

Man 1 can see men 2 and 3.

Man 2 can see man 3.

Man 3 can see none of the others.

Man 4 can see none of the others.

They are wearing hats. They are told that there are two white hats and two black hats. The men initially don't know what colour hat they are wearing. They are told to shout out the colour of the hat that they are wearing as soon as they know for certain what colour it is.

RULES:

They are not allowed to turn round or move.

They are not allowed to talk to each other.

They are not allowed to take their hats off.

Who is the first person to shout out and why?

So to summarise :-

Man 1 can see men 2 and 3.

Man 2 can see man 3.

Man 3 can see none of the others.

Man 4 can see none of the others.

They are wearing hats. They are told that there are two white hats and two black hats. The men initially don't know what colour hat they are wearing. They are told to shout out the colour of the hat that they are wearing as soon as they know for certain what colour it is.

RULES:

They are not allowed to turn round or move.

They are not allowed to talk to each other.

They are not allowed to take their hats off.

Who is the first person to shout out and why?

Saandeep Sreerambatla · Jan 20, 2010

Rank A2 - PRO

Is the question complete?

I think you should also give the colour of hats they are wearing in the question.

Man1 - White , Man2 - Black , Man3 - White - Man4 - Black.

Man 2 will shout and he is rite 😀

Because , Man 3 and Man 4 cannot see anyone so they cannot answer.

Now if Man 1 can see other two but he cannot shout because he is uncertain.

Man2 can see only man-3 thus Man-2 will shout he is wearing black hat because if he is wearing white one Man1 would be certain of his hat.

Did you get me?

I think you should also give the colour of hats they are wearing in the question.

Man1 - White , Man2 - Black , Man3 - White - Man4 - Black.

Man 2 will shout and he is rite 😀

Because , Man 3 and Man 4 cannot see anyone so they cannot answer.

Now if Man 1 can see other two but he cannot shout because he is uncertain.

Man2 can see only man-3 thus Man-2 will shout he is wearing black hat because if he is wearing white one Man1 would be certain of his hat.

Did you get me?

Saandeep Sreerambatla · Jan 20, 2010

Rank A2 - PRO

Yes I need not guess the age, if suppose I am the captain then its my age 😀cooltwinsyeah you are right ratika...

and sorry for the delay in the next question.....

here it goes.....

39) Suppose you are captain of the ship "sail away". Ship is going from India to Australia. In between Indian Ocean, after traveling for 10 hours, storm came. The only way to be safe from storm was to go back to India or go to Malaysia. But captain told that we will go straight and fortunately storm also became less aggressive. They crossed the danger and continued journey well. Can you guess the age of captain who took a strong and dangerous decision but at last won

cooltwins · Jan 20, 2010

Rank B1 - LEADER

yes you are right captain..😀English-ScaredYes I need not guess the age, if suppose I am the captain then its my age 😀

cooltwins · Jan 20, 2010

Rank B1 - LEADER

hey ES,English-ScaredIs the question complete?

I think you should also give the colour of hats they are wearing in the question.

Man1 - White , Man2 - Black , Man3 - White - Man4 - Black.

Man 2 will shout and he is rite 😀

Because , Man 3 and Man 4 cannot see anyone so they cannot answer.

Now if Man 1 can see other two but he cannot shout because he is uncertain.

Man2 can see only man-3 thus Man-2 will shout he is wearing black hat because if he is wearing white one Man1 would be certain of his hat.

Did you get me?

the question is complete....😀

there will be only two possibilities:

I) both 2nd and 3rd are wearing the same colour......

then 1st guy will shout the answer.

II) 2nd and 3rd wear the opposite colours.....

then what you said happens... i.e., 2nd guy shouts out his colour.

this was the expected answer...

and you did get it right.

then why do you want the colours also mentioned 😛

cooltwins · Jan 20, 2010

Rank B1 - LEADER

**41)A standard sized cigarette can be rolled out of 6 standard sized cigarette butts. How many cigarettes can be made and smoked from 36 butts :?:**

cooltwins · Jan 20, 2010

Rank B1 - LEADER

**42)A box contains 12 marbles of three different colours green, yellow and blue -4 each.**

If you were to take the marbles at random with your eyes closed, how many marbles must you take out to be sure that there are at least two of one colour among the marbles are picked.

If you were to take the marbles at random with your eyes closed, how many marbles must you take out to be sure that there are at least two of one colour among the marbles are picked.

vik001ind · Jan 20, 2010

Rank C1 - EXPERT

I think 4 marbles

cooltwins · Jan 21, 2010

Rank B1 - LEADER

yep you are right...😉

and what about the 41st question?

and what about the 41st question?

cooltwins · Jan 21, 2010

Rank B1 - LEADER

**43)There are two persons each having same amount of**

sweets in the beginning and 1st person gains 20 more

From the second person and he eventually lose two

Thirds of it during a bet and now the second person has four times sweets of what first person is having now.find how much sweets did each have in the

beginning ?

sweets in the beginning and 1st person gains 20 more

From the second person and he eventually lose two

Thirds of it during a bet and now the second person has four times sweets of what first person is having now.find how much sweets did each have in the

beginning ?

cooltwins · Jan 22, 2010

Rank B1 - LEADER

**44)here is a question that is a bit tough but just try it or i will give the answer:**

**How many squares are there on a chessboard? How many rectangles?**

so 41,43,44 remain to be answered.👍

gaurav.bhorkar · Jan 22, 2010

Rank B2 - LEADER

Is the answercooltwins41)A standard sized cigarette can be rolled out of 6 standard sized cigarette butts. How many cigarettes can be made and smoked from 36 butts :?:

**6**.

cooltwins · Jan 23, 2010

Rank B1 - LEADER

no check it out again gaurav 😀gaurav.bhorkarIs the answer6.

cooltwins · Jan 27, 2010

Rank B1 - LEADER

the answer for the last question is:cooltwins44)here is a question that is a bit tough but just try it or i will give the answer:

How many squares are there on a chessboard? How many rectangles?

**Number of squares in a chessboard:**

1^2 + 2^2 + 3^2 + 4^2 + 5^2 + 6^2 + 7^2 + 8^2 = 204.

Formula N = (n(n+1)(2n+1))/6

**Number of rectangles in a chessboard:**

There are 9 vertical lines and 9 horizontal lines. To form a rectangle

you must choose 2 of the 9 vertical lines, and 2 of the 9 horizontal

lines. Each of these can be done in 9C2 ways = 36 ways. So the number

of rectangles is given by 36^2 = 1296.

Formula N = (n(n+1)/2)^2

do try the 41st and 43rd questions....they are easy😀

CIVILPRINCESS · Feb 5, 2010

Rank A3 - PRO

the answer would be 7 .cooltwins

out of the 36 cigars we get 36 cigarette butts.

with 36 cigarette butts we can make

**6 cigars.**

and on smoking these 6 cigarettes we get 6 cigarette butts.

and we can make

**1 cigar**of these 6 cigarette butts.

so totally

**7 cigarettes**.

cooltwins · Feb 6, 2010

Rank B1 - LEADER

yep you are right princess.😀

and 43rd remains unanswered...

come on it is not that tough.

and 43rd remains unanswered...

come on it is not that tough.

durga ch · Feb 8, 2010

Rank A2 - PRO

ok

43Q

x =180

let x be equal amounts of fruits with perosn A , B

the final equation is

4(x+20)/3 = 5(x-20)/3

43Q

x =180

let x be equal amounts of fruits with perosn A , B

the final equation is

4(x+20)/3 = 5(x-20)/3

cooltwins · Feb 8, 2010

Rank B1 - LEADER

no durga you have made a small error in your final equation check it out 😀

shyamala_sharma · Feb 9, 2010

Rank E1 - BEGINNER

the ans is x=100

let x be equal no: of sweets for A and B

A gains 20 from B so: A: x+20 and B: x-20

A loses 2/3 of his sweets that means B gains 2/3 sweets of A's:

hence A=(x+20)-2/3(x+20) and B=(x-20)+2/3(x+20)

finally B has 4times of A's sweets

so (x-20)+2/3(x+20)=4[(x-20)-2/3(x+20)]

solving it we get x=100

let x be equal no: of sweets for A and B

A gains 20 from B so: A: x+20 and B: x-20

A loses 2/3 of his sweets that means B gains 2/3 sweets of A's:

hence A=(x+20)-2/3(x+20) and B=(x-20)+2/3(x+20)

finally B has 4times of A's sweets

so (x-20)+2/3(x+20)=4[(x-20)-2/3(x+20)]

solving it we get x=100

cooltwins · Feb 9, 2010

Rank B1 - LEADER

yeah right shamala 👍

shyamala_sharma · Feb 9, 2010

Rank E1 - BEGINNER

thanq sir😀

cooltwins · Feb 9, 2010

Rank B1 - LEADER

i am not a sir 😀

you just call me cooltwins 😛

you just call me cooltwins 😛

shyamala_sharma · Feb 9, 2010

Rank E1 - BEGINNER

ok cooltwins😀

sherya mathur · Feb 22, 2010

Rank C3 - EXPERT

1)

**In a row of boys A is 15th from the left and B is 4th from the right.there are three boys between A and B. C is the left of A.What is c's position from right**

solution is:

1 2 3 4 5 6 7 8 9 10 11 12 1314solution is:

1 2 3 4 5 6 7 8 9 10 11 12 13

**15 16 17 18 19 20 21 22**

C A X Y Z B

hence it is clear from the above there are total 22 boys and 22'nd boy is right most so we find from there c is at the 9'th position from the right

C A X Y Z B

hence it is clear from the above there are total 22 boys and 22'nd boy is right most so we find from there c is at the 9'th position from the right

sherya mathur · Feb 23, 2010

Rank C3 - EXPERT

2)**A,B,C,D are 4 friends who do not mind exchanging items. A had 2 chessboards each costing Rs. 500 and a record player. C originally had a cycle and a walk man. each cricket bat costs Rs.700. Both D,C got a cricket bat from B. A gave his record player costing Rs.2000 to B.C got a camera costing Rs.1500 from D.The cycle costs Rs. 1000 and the Walkman costs Rs.700.B had 3 cricket bats initially.D had 2 cameras total cost of which is Rs.5000. A gave one of his chess boards to C and took C's cycle.C gave his walkman to D.**(2006 MBA)

2.1)Who did not have a cricket bat at the end?

(a)A, (b)B, (c)C, (d)D

2.2)Total cost of materials C had in the beginning?

(a)Rs.5000,(b)Rs.3000,(c)Rs.2100,(d)Rs.1700

2.3)who incurred the maximum loss in the transaction?

(a)D (b)A (c)C (d)B

2.4)who made profit after the transactions..?

(a)A,B (b)A,D (c)B,C (d)C,D

2.5)After the transaction, who had items total cost of Rs. 1500?

(a)A (b)B (c)C (d)D

solution:

solution will be:First i would like to give the explanation of solution

A had items:2 chessboard cost of each is Rs.500 & 1 record player of cost Rs. 2000

so A had in beginning items of total cost of Rs.=3000

after transaction he had only only 1 cycle of cost Rs.=1000 & 1 chessboard of his own

loss in transaction =1500

B had items:3 cricket bat each of rs.700

so B had in beginning items of total cost of rs.=2100

after transaction he had only 1 record player of cost Rs.=2000 & 1 bat of his own

profit in transaction =600

C had items:1 cycle cost of rs.1000 & 1walkman of cost rs.700

so C had in beginning items of total cost of rs.=1700

after transaction he had only 1 bat of cost Rs.=700 & 1 chessboard of cost=500 and 1 camera=1500

profit in transaction =2700

D had items:2 camera cost of one is Rs 1500 & other one of cost Rs. 3500

so A had in beginning items of total cost of Rs.=5000

after transaction he had only only 1batof cost Rs.=700 & 1 camera of his own of cast Rs.=3500 & a walkman of Rs. 700

loss in transaction =100

1. A[ A did not have the bat at the end]

2. 1700 [coat of materials c had in the beginning]

3. A [A had the maximum loss of Rs. 1500 after the transaction]

4. B & C made the profit after transaction

5. A [A had a chessboard and a cycle]

I hope this will be the right way of explanation

if not then suggest me what else should be and should not be there....

2.1)Who did not have a cricket bat at the end?

(a)A, (b)B, (c)C, (d)D

2.2)Total cost of materials C had in the beginning?

(a)Rs.5000,(b)Rs.3000,(c)Rs.2100,(d)Rs.1700

2.3)who incurred the maximum loss in the transaction?

(a)D (b)A (c)C (d)B

2.4)who made profit after the transactions..?

(a)A,B (b)A,D (c)B,C (d)C,D

2.5)After the transaction, who had items total cost of Rs. 1500?

(a)A (b)B (c)C (d)D

solution:

solution will be:First i would like to give the explanation of solution

A had items:2 chessboard cost of each is Rs.500 & 1 record player of cost Rs. 2000

so A had in beginning items of total cost of Rs.=3000

after transaction he had only only 1 cycle of cost Rs.=1000 & 1 chessboard of his own

loss in transaction =1500

B had items:3 cricket bat each of rs.700

so B had in beginning items of total cost of rs.=2100

after transaction he had only 1 record player of cost Rs.=2000 & 1 bat of his own

profit in transaction =600

C had items:1 cycle cost of rs.1000 & 1walkman of cost rs.700

so C had in beginning items of total cost of rs.=1700

after transaction he had only 1 bat of cost Rs.=700 & 1 chessboard of cost=500 and 1 camera=1500

profit in transaction =2700

D had items:2 camera cost of one is Rs 1500 & other one of cost Rs. 3500

so A had in beginning items of total cost of Rs.=5000

after transaction he had only only 1batof cost Rs.=700 & 1 camera of his own of cast Rs.=3500 & a walkman of Rs. 700

loss in transaction =100

1. A[ A did not have the bat at the end]

2. 1700 [coat of materials c had in the beginning]

3. A [A had the maximum loss of Rs. 1500 after the transaction]

4. B & C made the profit after transaction

5. A [A had a chessboard and a cycle]

I hope this will be the right way of explanation

if not then suggest me what else should be and should not be there....

sherya mathur · Feb 23, 2010

Rank C3 - EXPERT

**22) what next...?**

(1,2) (5,10) (15,30) (37,74) ...............

(a) (80,160) (b) (82,164) (c) (83,166) (d) (84,168)

solution to this:

5-1=>4x2+2=10

15-5=>10x2+10=30

37-15=>22x2+30=74

83-37=>46x2+74=166

therefore the answer will be

c)(83,166)

(1,2) (5,10) (15,30) (37,74) ...............

(a) (80,160) (b) (82,164) (c) (83,166) (d) (84,168)

solution to this:

5-1=>4x2+2=10

15-5=>10x2+10=30

37-15=>22x2+30=74

83-37=>46x2+74=166

therefore the answer will be

c)(83,166)

sherya mathur · Feb 23, 2010

Rank C3 - EXPERT

**33)Can you fiind the tenth number in this series?**

3, 3, 5, 4, 4, 3, 5, 5, 4, ?

3, 3, 5, 4, 4, 3, 5, 5, 4, ?

solution is : the series is like that

first come two 3

then one 5

then two 4

one 3

two 5

one 4

so next will two 3

so the next digit will be 3 in the series

sherya mathur · Feb 23, 2010

Rank C3 - EXPERT

2)**A,B,C,D are 4 friends who do not mind exchanging items. A had 2 chessboards each costing Rs. 500 and a record player. C originally had a cycle and a walk man. each cricket bat costs Rs.700. Both D,C got a cricket bat from B. A gave his record player costing Rs.2000 to B.C got a camera costing Rs.1500 from D.The cycle costs Rs. 1000 and the Walkman costs Rs.700.B had 3 cricket bats initially.D had 2 cameras total cost of which is Rs.5000. A gave one of his chess boards to C and took C's cycle.C gave his walkman to D.**(2006 MBA)

2.1)Who did not have a cricket bat at the end?

(a)A, (b)B, (c)C, (d)D

2.2)Total cost of materials C had in the beginning?

(a)Rs.5000,(b)Rs.3000,(c)Rs.2100,(d)Rs.1700

2.3)who incurred the maximum loss in the transaction?

(a)D (b)A (c)C (d)B

2.4)who made profit after the transactions..?

(a)A,B (b)A,D (c)B,C (d)C,D

2.5)After the transaction, who had items total cost of Rs. 1500?

(a)A (b)B (c)C (d)D

solution:

solution will be:First i would like to give the explanation of solution

A had items:2 chessboard cost of each is Rs.500 & 1 record player of cost Rs. 2000

so A had in beginning items of total cost of Rs.=3000

after transaction he had only only 1 cycle of cost Rs.=1000 & 1 chessboard of his own

loss in transaction =1500

B had items:3 cricket bat each of rs.700

so B had in beginning items of total cost of rs.=2100

after transaction he had only 1 record player of cost Rs.=2000 & 1 bat of his own

profit in transaction =600

C had items:1 cycle cost of rs.1000 & 1walkman of cost rs.700

so C had in beginning items of total cost of rs.=1700

after transaction he had only 1 bat of cost Rs.=700 & 1 chessboard of cost=500 and 1 camera=1500

profit in transaction =2700

D had items:2 camera cost of one is Rs 1500 & other one of cost Rs. 3500

so A had in beginning items of total cost of Rs.=5000

after transaction he had only only 1batof cost Rs.=700 & 1 camera of his own of cast Rs.=3500 & a walkman of Rs. 700

loss in transaction =100

1. A[ A did not have the bat at the end]

2. 1700 [coat of materials c had in the beginning]

3. A [A had the maximum loss of Rs. 1500 after the transaction]

4. B & C made the profit after transaction

5. A [A had a chessboard and a cycle]

I hope this will be the right way of explanation

if not then suggest me what else should be and should not be there....

2.1)Who did not have a cricket bat at the end?

(a)A, (b)B, (c)C, (d)D

2.2)Total cost of materials C had in the beginning?

(a)Rs.5000,(b)Rs.3000,(c)Rs.2100,(d)Rs.1700

2.3)who incurred the maximum loss in the transaction?

(a)D (b)A (c)C (d)B

2.4)who made profit after the transactions..?

(a)A,B (b)A,D (c)B,C (d)C,D

2.5)After the transaction, who had items total cost of Rs. 1500?

(a)A (b)B (c)C (d)D

solution:

solution will be:First i would like to give the explanation of solution

A had items:2 chessboard cost of each is Rs.500 & 1 record player of cost Rs. 2000

so A had in beginning items of total cost of Rs.=3000

after transaction he had only only 1 cycle of cost Rs.=1000 & 1 chessboard of his own

loss in transaction =1500

B had items:3 cricket bat each of rs.700

so B had in beginning items of total cost of rs.=2100

after transaction he had only 1 record player of cost Rs.=2000 & 1 bat of his own

profit in transaction =600

C had items:1 cycle cost of rs.1000 & 1walkman of cost rs.700

so C had in beginning items of total cost of rs.=1700

after transaction he had only 1 bat of cost Rs.=700 & 1 chessboard of cost=500 and 1 camera=1500

profit in transaction =2700

D had items:2 camera cost of one is Rs 1500 & other one of cost Rs. 3500

so A had in beginning items of total cost of Rs.=5000

after transaction he had only only 1batof cost Rs.=700 & 1 camera of his own of cast Rs.=3500 & a walkman of Rs. 700

loss in transaction =100

1. A[ A did not have the bat at the end]

2. 1700 [coat of materials c had in the beginning]

3. A [A had the maximum loss of Rs. 1500 after the transaction]

4. B & C made the profit after transaction

5. A [A had a chessboard and a cycle]

I hope this will be the right way of explanation

if not then suggest me what else should be and should not be there....

sherya mathur · Feb 24, 2010

Rank C3 - EXPERT

**36)There is a pole in a lake.One-half of the pole is in the ground, another one-third of it is covered by water, & 8 ft is out of the water.**

Then,What is the total length of the pole in ft?

solution : let the total length of the pole is x feet

x-[x/2+x/6]=8

6x-4x=48

x=24 feet

therefore total length of the pole will be 24 feet

Then,What is the total length of the pole in ft?

solution : let the total length of the pole is x feet

x-[x/2+x/6]=8

6x-4x=48

x=24 feet

therefore total length of the pole will be 24 feet

cooltwins · Mar 11, 2010

Rank B1 - LEADER

yeah right shreya

sorry for the delayed reply

i was so busy with my college stuff + some extra curricular stuff too.

sorry for the delayed reply

i was so busy with my college stuff + some extra curricular stuff too.

cooltwins · Mar 11, 2010

Rank B1 - LEADER

**45 )A long wire, 16 meters in length, hangs between two poles that are both 15 meters high.The ends of the wire are attached to the tops of the poles.At its lowest point, the wire hangs 7 meters above the ground.Then how far the two poles apart ?**

TIP: Do not get too technical just think logically 👍

TIP: Do not get too technical just think logically 👍

cooltwins · Mar 11, 2010

Rank B1 - LEADER

**46)There are 3 people A,B,C.A lent cars to B and C as many as they had already.After some time B gave as many cars to A & C as many as they have.**

After sometime C did the same thing.At the end of this transaction each one of them had 24.Then,find the cars each originally had ?

After sometime C did the same thing.At the end of this transaction each one of them had 24.Then,find the cars each originally had ?

whiz.kid.aniket · Mar 11, 2010

Rank C1 - EXPERT

cooltwins46)There are 3 people A,B,C.A lent cars to B and C as many as they had already.After some time B gave as many cars to A & C as many as they have.

After sometime C did the same thing.At the end of this transaction each one of them had 24.Then,find the cars each originally had ?

A = 39 cars

B = 21 cars

C =12 cars

....hope this is right?😒

cooltwins · Mar 13, 2010

Rank B1 - LEADER

yeah right whiz kid 👍whiz.kid.aniketA = 39 cars

B = 21 cars

C =12 cars

....hope this is right?😒

what about the 45th question ?

whiz.kid.aniket · Mar 13, 2010

Rank C1 - EXPERT

cooltwins45 )A long wire, 16 meters in length, hangs between two poles that are both 15 meters high.The ends of the wire are attached to the tops of the poles.At its lowest point, the wire hangs 7 meters above the ground.Then how far the two poles apart ?

TIP: Do not get too technical just think logically 👍

the poles stand next to each other. it means that the cable goes 8 meters straight down and 8 meters straight up.

the ans should be zero metres!!

cooltwins · Apr 8, 2010

Rank B1 - LEADER

yes you are right whiz.kid.aniket 👍whiz.kid.aniketthe poles stand next to each other. it means that the cable goes 8 meters straight down and 8 meters straight up.

the ans should be zero metres!!

cooltwins · Apr 8, 2010

Rank B1 - LEADER

**47)Using the mathematical symbols (,+,-,*,/,) can you make following equation become true.**

9 8 7 6 5 4 3 2 1 = 2021

Note: Don't combine the numbers. For example 987+65....

you should use all the numbers and the symbols.

the numbers can used only once in the same order and the symbols can be used any number of times

so start thinking 😁

9 8 7 6 5 4 3 2 1 = 2021

Note: Don't combine the numbers. For example 987+65....

you should use all the numbers and the symbols.

the numbers can used only once in the same order and the symbols can be used any number of times

so start thinking 😁

s1512 · Apr 9, 2010

Rank E2 - BEGINNER

is it 9 am i rgt

cooltwins · Apr 10, 2010

Rank B1 - LEADER

sorry but which question's answer is this.😀s1512is it 9 am i rgt

please specify the question number to answer.😁

csiscool · Apr 11, 2010

Rank C2 - EXPERT

the correct answer is 48 I think..sherya mathur36)There is a pole in a lake.One-half of the pole is in the ground, another one-third of it is covered by water, & 8 ft is out of the water.

Then,What is the total length of the pole in ft?

solution : let the total length of the pole is x feet

x-[x/2+x/6]=8

6x-4x=48

x=24 feet

therefore total length of the pole will be 24 feet

x/2 + x/3 + 8 = x

5x+48 = 6x

x = 48

ashish goyal · Apr 11, 2010

Rank E1 - BEGINNER

it will be at 9th

cooltwins · May 10, 2010

Rank B1 - LEADER

what's up people...:?:cooltwins47)Using the mathematical symbols (,+,-,*,/,) can you make following equation become true.

9 8 7 6 5 4 3 2 1 = 2021

Note: Don't combine the numbers. For example 987+65....

you should use all the numbers and the symbols.

the numbers can used only once in the same order and the symbols can be used any number of times

so start thinking 😁

no answer for this question 😔

ok. i'm giving some clues. form the equation using

* 4 times,

+ 3 times,

/ 1 time,

( 1 time,

) 1 time,

- 0 time.

now any one ready to answer :hehehe:

cooltwins · Aug 2, 2010

Rank B1 - LEADER

hello CEans,

after a long gap, the cooltwins aptitude centre is back in action. 😁

sorry for the long gap... i'm back with a fresh set of questions 😁

after a long gap, the cooltwins aptitude centre is back in action. 😁

sorry for the long gap... i'm back with a fresh set of questions 😁

**48) if i bought a book having 1-156 pages, and tear of 4 pages in random and add up their page numbers, what is the probability that the sum of the page numbers from the torn pages will be 87:?:**cooltwins · Aug 2, 2010

Rank B1 - LEADER

**49) vikram was attending a maths class. his teacher asked him to take a seven digit number and add all the seven digits. then he asks them to subtract the sum of digits from the seven digit number. he asks them to write the answer down in the paper. vikram was not attentive and he missed one of the digits. he gave the rest six digits : 3,4,0,1,4,9 (the digits are also not in order 😉)**

is possible for you to find the missing digit:?:

is possible for you to find the missing digit:?:

it's not too complicated. just work on the basic subtraction 😀

think think 😀

P.S.: the 47th question still remains unanswered😀

vik001ind · Aug 3, 2010

Rank C1 - EXPERT

In Q48 the pages torn are consecutive?

In q49 is it nine/seven digit no.?

In q49 is it nine/seven digit no.?

cooltwins · Aug 3, 2010

Rank B1 - LEADER

the pages are torn at random. no order. but it may be consecutive also 😉vik001indIn Q48 the pages torn are consecutive?

In q49 is it nine/seven digit no.?

sorry for the confusion in q49... it is a seven digit number

vik001ind · Aug 4, 2010

Rank C1 - EXPERT

Q48

let the page no. be

x,x+1

y,y+1

z,z+1

t,t+1

(hint: removing a page removes its backside too)

adding all

2(x+y+z+t) +4 = 87

2(x+y+z+t) = 83 -> a contradiction

therefore answer is zero probability.

let the page no. be

x,x+1

y,y+1

z,z+1

t,t+1

(hint: removing a page removes its backside too)

adding all

2(x+y+z+t) +4 = 87

2(x+y+z+t) = 83 -> a contradiction

therefore answer is zero probability.

cooltwins · Aug 5, 2010

Rank B1 - LEADER

yes vik 001 you are absolutely right..... 👍

what about the other question? any luck........?

what about the other question? any luck........?

vik001ind · Aug 5, 2010

Rank C1 - EXPERT

I can't find any way to proceed in last question, 47th sounds too length!

CIVILPRINCESS · Aug 5, 2010

Rank A3 - PRO

the answer is zero.48) if i bought a book having 1-156 pages, and tear of 4 pages in random and add up their page numbers, what is the probability that the sum of the page numbers from the torn pages will be 87:?:

because adding 4 odds and 4 evens (page nos. of the 4 pages) will give even... so no chance of it being 87(odd)..

cooltwins · Aug 9, 2010

Rank B1 - LEADER

hey guys whats up?

no takers for the last question?

its easy ......

anyway here goes the next question....

no takers for the last question?

its easy ......

anyway here goes the next question....

**50) What is the last digit of S, if S = 1^101 + 2^101 + 3^101 + … + 101^101?**

OPTIONS

1)1 2)3 3)5 4)7 5)9

OPTIONS

1)1 2)3 3)5 4)7 5)9

vik001ind · Aug 10, 2010

Rank C1 - EXPERT

I think its 1!

cooltwins · Aug 10, 2010

Rank B1 - LEADER

you are right vik 001...... 👍

CIVILPRINCESS · Aug 10, 2010

Rank A3 - PRO

i found the answer 😁cooltwins49) vikram was attending a maths class. his teacher asked him to take a seven digit number and add all the seven digits. then he asks them to subtract the sum of digits from the seven digit number. he asks them to write the answer down in the paper. vikram was not attentive and he missed one of the digits. he gave the rest six digits : 3,4,0,1,4,9 (the digits are also not in order 😉)

is possible for you to find the missing digit:?:

the answer is

**6**

reason:

let us consider a number abc.

it can be written as 100a+10b+c.

the sum of it's digits is a+b+c.

when we subtract the sum from the number we get : (100a+10b+c)-(a+b+c) => 99a+9b ..... i.e. a multiple of 9.

this can be applied to any number of digits...

so the sum of digits obtained after subtracting the sum from number should be a multiple of 9.

therefore 3+4+0+1+4+9+x should be a multiple of nine.......=> x=6

am i right:?:

i did one sum in similar lines some time back 😀

vinsocorp · Aug 12, 2010

Rank E1 - BEGINNER

1378 for question 3? Am i correct?

cooltwins · Oct 1, 2010

Rank B1 - LEADER

yeah you are right 👍

cooltwins · Oct 1, 2010

Rank B1 - LEADER

hey guys i know there has been no activity in this thread of late.

its just that i do not find time. but here goes the next question:

its just that i do not find time. but here goes the next question:

**51) i have three numbers in arithmetic progression. when i multiply them i get a prime number. can you find out the numbers?**sam_from_hell · Oct 1, 2010

Rank C3 - EXPERT

is it 0,1,2 ??cooltwins51) i have three numbers in arithmetic progression. when i multiply them i get a prime number. can you find out the numbers?

cooltwins · Oct 1, 2010

Rank B1 - LEADER

no ,when you multiply them you get zero and zero is not considered as a prime 😀

prime numbers start only from 2

prime numbers start only from 2

sam_from_hell · Oct 1, 2010

Rank C3 - EXPERT

oops *

**bangs head on keyboard for being so stupid***

cooltwins · Oct 1, 2010

Rank B1 - LEADER

no you were not that stupid 😉 😁

even my sis did the same mistake. do try. its easy. 😀

even my sis did the same mistake. do try. its easy. 😀

Saandeep Sreerambatla · Oct 4, 2010

Rank A2 - PRO

- 3 , -1 and 1

cooltwins · Oct 4, 2010

Rank B1 - LEADER

absolutely right ES 😀

sam_from_hell · Oct 4, 2010

Rank C3 - EXPERT

moar! 😁 😁