CrazyEngineers
  • cooltwins
    cooltwins

    MemberNov 24, 2009

    Cooltwin's aptitude center

    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...
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  • cooltwins

    MemberNov 24, 2009

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

    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.
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  • Saandeep Sreerambatla

    MemberNov 24, 2009

    is it 9th ??
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  • cooltwins

    MemberNov 24, 2009

    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 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
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  • cooltwins

    MemberNov 24, 2009

    English-Scared
    is it 9th ??
    Yeah you are right 😁

    the answer for the 1st is 9th.
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  • cooltwins

    MemberNov 24, 2009

    2nd 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
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  • cooltwins

    MemberNov 24, 2009

    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'?
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  • Rohan_sK

    MemberNov 24, 2009

    Answers:

    1. A

    2. 1700

    3. A
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  • Saandeep Sreerambatla

    MemberNov 24, 2009

    4. C

    5. A
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  • Saandeep Sreerambatla

    MemberNov 24, 2009

    Rohan_sK
    Answers:

    1. A

    2. 1700

    3. A

    Guess these are correct !!!
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  • cooltwins

    MemberNov 24, 2009

    Rohan_sK
    Answers:

    1. A

    2. 1700

    3. A
    English-Scared
    4. C

    5. A
    awesome going guys you got all the answers right.....😁

    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:
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  • cooltwins

    MemberNov 24, 2009

    Hey guys the 3rd question remains unanswered....
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  • yadavundertaker mohit

    MemberNov 24, 2009

    cooltwins
    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'?


    3241

    is it right?.
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  • cooltwins

    MemberNov 24, 2009

    no yadav.
    just try checking it again leisurely 😀
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  • CIVILPRINCESS

    MemberNov 24, 2009

    Is the answer for the 3rd question: 1378
    (i mean it can be in any order.)
    is it right?
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  • cooltwins

    MemberNov 24, 2009

    yeah you are right princess...😀

    the answer for the 3rd question is : 1378
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  • cooltwins

    MemberNov 24, 2009

    now 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.
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  • cooltwins

    MemberNov 24, 2009

    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)


    (pi)-3.14
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  • CIVILPRINCESS

    MemberNov 24, 2009

    cooltwins
    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)


    (pi)-3.14
    Let x be the distance moved...
    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😀
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  • cooltwins

    MemberNov 24, 2009

    yeah right princess....😀
    what about the 4th one?
    that is yet to be answered.😀
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  • cooltwins

    MemberNov 25, 2009

    hey guys what happened ....😔
    no takers for the 4th question😕
    it is an easy one try it......
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  • CIVILPRINCESS

    MemberNov 25, 2009

    cooltwins
    now 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 x-group =x*x*x-------(1)
    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
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  • CIVILPRINCESS

    MemberNov 25, 2009

    correct na....?
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  • CIVILPRINCESS

    MemberNov 25, 2009

    nice set of questions.....
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  • cooltwins

    MemberNov 25, 2009

    you are right......😀
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  • cooltwins

    MemberNov 25, 2009

    now 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......:?:
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  • cooltwins

    MemberNov 25, 2009

    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....:?:
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  • shubhrajeet tiwa

    MemberNov 26, 2009

    ans for code breaking
    i think it is :
    1378
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  • tech addict

    MemberNov 26, 2009

    cooltwins
    2nd 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
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  • cooltwins

    MemberNov 26, 2009

    shubhrajeet tiwa
    ans for code breaking
    i think it is :
    1378
    tech addict
    the answers are:-
    2.4-c- B,C
    2.5-a- A
    your answers are all right.👍

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

    MemberNov 26, 2009

    cooltwins
    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....:?:
    Answer: 30 min

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  • cooltwins

    MemberNov 26, 2009

    sarveshgupta
    Answer: 30 min

    Is it correct?
    yep your ans is correct 👍
    try to give the explanation and do go ahead with the rest of the sums.😀
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  • anuraadha

    MemberNov 26, 2009

    2)Answers
    1.(a)A
    2.1700
    3.A
    4.B,C
    5.A

    what is the answer?
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  • cooltwins

    MemberNov 26, 2009

    anuraadha
    2)Answers
    1.(a)A
    2.1700
    3.A
    4.B,C
    5.A

    what is the answer?
    yes your answer is right. 👍

    and the fifth question remains unanswered...
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  • CIVILPRINCESS

    MemberNov 27, 2009

    cooltwins
    now 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......:?:
    Let x be the average speed.
    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?
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  • cooltwins

    MemberDec 1, 2009

    yep the answer is correct...👍
    sorry for the delay in the reply......😔
    just caught up for a few days.... and got time only today......😀
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  • cooltwins

    MemberDec 1, 2009

    7)now find the next number in the series.....:
    72,53,34,25,......


    sorry for the delay in the questions😀
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  • cooltwins

    MemberDec 1, 2009

    8)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...😀
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  • cooltwins

    MemberDec 1, 2009

    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?
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  • yadavundertaker mohit

    MemberDec 1, 2009

    7) 16

    is it correct?
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  • yadavundertaker mohit

    MemberDec 1, 2009

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

    MemberDec 1, 2009

    yadavundertaker
    7) 16

    is it correct?
    no 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...😀
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  • cooltwins

    MemberDec 1, 2009

    yadavundertaker
    9) ring 3 is lightest..
    yep you are right..👍
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  • cooltwins

    MemberDec 1, 2009

    the 8th question remains unanswered..?
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  • cooltwins

    MemberDec 2, 2009

    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?
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  • cooltwins

    MemberDec 2, 2009

    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!👍
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  • Saandeep Sreerambatla

    MemberDec 2, 2009

    cooltwins
    8)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...😀
    1. 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
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  • Saandeep Sreerambatla

    MemberDec 2, 2009

    If we calculate tanx = 5/2

    if we calculate it we get 300.
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  • sarveshgupta

    MemberDec 2, 2009

    English-Scared
    1. 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
    Yes ES i too will like to go with your answers

    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
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  • cooltwins

    MemberDec 2, 2009

    English-Scared
    1. 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
    yes es you are right...👍
    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.....😛
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  • cooltwins

    MemberDec 2, 2009

    English-Scared
    If we calculate tanx = 5/2

    if we calculate it we get 300.
    yep you are right😀
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  • yadavundertaker mohit

    MemberDec 2, 2009

    cooltwins
    no 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
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  • cooltwins

    MemberDec 3, 2009

    yadavundertaker
    logic 1

    72-34=38

    53-25=28

    34-x=18

    on solving we get x= 16
    yeah this does work out....but that is not the required logic....
    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.😀
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  • cooltwins

    MemberDec 3, 2009

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

    MemberDec 4, 2009

    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...)
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  • cooltwins

    MemberDec 4, 2009

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

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

    this is a tough one....:evil:
    but think....think......👍
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  • ratikagoel

    MemberDec 4, 2009

    cooltwins
    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...)

    @12
    ans: d) none
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  • ratikagoel

    MemberDec 4, 2009

    cooltwins
    7)now find the next number in the series.....:
    72,53,34,25,......
    @7
    answer 29
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  • cooltwins

    MemberDec 4, 2009

    ratikagoel
    @12
    ans: d) none
    ratikagoel
    @7
    answer 29
    hey ratika...
    please do provide the solution along with the reasoning and method of solving😁
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  • ratikagoel

    MemberDec 4, 2009

    ya 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
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  • ratikagoel

    MemberDec 4, 2009

    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.
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  • cooltwins

    MemberDec 4, 2009

    ratikagoel
    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.
    ratikagoel
    ya 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
    yes.....😀
    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😀
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  • ratikagoel

    MemberDec 4, 2009

    i m trying them too cooltwins
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  • ratikagoel

    MemberDec 4, 2009

    in btw keep on posting ques yr
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  • cooltwins

    MemberDec 4, 2009

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

    MemberDec 4, 2009

    ok
    i will keep it my mind while replying or posting
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  • ratikagoel

    MemberDec 4, 2009

    answer for 13th ques.
    253 and 364
    is it correct?
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  • ratikagoel

    MemberDec 4, 2009

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

    MemberDec 4, 2009

    ratikagoel
    answer for 13th ques.
    253 and 364
    is it correct?
    awesome ratika........:clap:
    you are indeed right......👍

    and 10th question is still unanswered.........😀
    why don't you try it......😛
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  • ratikagoel

    MemberDec 5, 2009

    thanks cooltwins
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  • cooltwins

    MemberDec 5, 2009

    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 cooltwin'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.....
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  • cooltwins

    MemberDec 5, 2009

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

    MemberDec 5, 2009

    cooltwins
    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 cooltwin'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
    ----------😁
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  • sarveshgupta

    MemberDec 6, 2009

    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?
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  • sarveshgupta

    MemberDec 6, 2009

    Is the answer for the 10th question 25 goats?
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  • CIVILPRINCESS

    MemberDec 6, 2009

    sarveshgupta
    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?
    So 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 is 18 hours.
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  • cooltwins

    MemberDec 6, 2009

    ratikagoel
    answer of 14th ques
    837
    X643
    -----------
    2511
    3348X
    5022XX
    -----------
    538191
    ----------😁
    awesome ratika....:clap:
    great going........👍
    try solving the 10th one.......
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  • cooltwins

    MemberDec 6, 2009

    sarveshgupta
    Is the answer for the 10th question 25 goats?
    hey 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........
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  • sarveshgupta

    MemberDec 6, 2009

    CIVILPRINCESS
    So 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 is 18 hours.
    You are absolutely right CP
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  • sarveshgupta

    MemberDec 6, 2009

    cooltwins
    hey 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........
    Ok then the answer should be

    The third man had 25 goats

    the first farmer paid Rs 180 while the second man paid Rs 320

    Am I right now? 😁
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  • cooltwins

    MemberDec 8, 2009

    sarveshgupta
    Ok then the answer should be

    The third man had 25 goats

    the first farmer paid Rs 180 while the second man paid Rs 320

    Am I right now? 😁
    awesome sarvesh..:clap:
    you are right...👍

    atlast the 10th question is answered...
    will upload more questions soon😀
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  • cooltwins

    MemberDec 8, 2009

    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.

    Question:

    How many steps do you need if the escalator stands still?
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  • Saandeep Sreerambatla

    MemberDec 8, 2009

    IS the answer 100 ?
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  • cooltwins

    MemberDec 9, 2009

    English-Scared
    IS the answer 100 ?
    yeah your answer is correct ES....👍
    do try and give the explanation..........😒
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  • cooltwins

    MemberDec 9, 2009

    17)Find the odd one out…:?:

    19,28,39,52,67,84,102.
    (a)52 (b)102 (c)84 (d)67
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  • cooltwins

    MemberDec 9, 2009

    18)Find the odd one out…:?:

    888,440,216,104,48,22,6.
    (a)440 (b)216 (c)104 (d)48 (e)22
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  • cooltwins

    MemberDec 9, 2009

    19)Find the odd one out…:?:

    2807,1400,697,347,171,84,41,20
    (a)697 (b)347 (c)171 (d)84 (e)12
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  • cooltwins

    MemberDec 9, 2009

    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..........👍
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  • sarveshgupta

    MemberDec 9, 2009

    cooltwins
    17)Find the odd one out…:?:

    19,28,39,52,67,84,102.
    (a)52 (b)102 (c)84 (d)67
    Answer is b) 102
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  • sarveshgupta

    MemberDec 9, 2009

    cooltwins
    18)Find the odd one out…:?:

    888,440,216,104,48,22,6.
    (a)440 (b)216 (c)104 (d)48 (e)22
    Answer is e) 22
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  • sarveshgupta

    MemberDec 9, 2009

    cooltwins
    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..........👍
    Only two people you and the man you met
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  • ratikagoel

    MemberDec 10, 2009

    cooltwins
    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..........👍

    answer:

    only myself
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  • ratikagoel

    MemberDec 10, 2009

    cooltwins
    19)Find the odd one out…:?:

    2807,1400,697,347,171,84,41,20
    (a)697 (b)347 (c)171 (d)84 (e)12
    answer
    (b)347
    41%20=1
    84%41=2
    171%84=3
    so
    347%171=5 which is wrong
    😁
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  • cooltwins

    MemberDec 10, 2009

    sarveshgupta
    Answer is b) 102
    sarveshgupta
    Answer is e) 22
    yeah right.....👍
    what about the explanation sarvesh....:?:
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  • cooltwins

    MemberDec 10, 2009

    sarveshgupta
    Only two people you and the man you met
    no sarvesh you fell for the trick....😀
    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...
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  • cooltwins

    MemberDec 10, 2009

    ratikagoel
    answer:

    only myself
    yes you are right ratika👍
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  • cooltwins

    MemberDec 10, 2009

    ratikagoel
    answer
    (b)347
    41%20=1
    84%41=2
    171%84=3
    so
    347%171=5 which is wrong
    😁
    yup your answer is right ratika😀
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  • cooltwins

    MemberDec 12, 2009

    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.....

    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........:?:
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  • cooltwins

    MemberDec 12, 2009

    and guys please do post your logic when you solve some question......
    you can follow the format:

    question no.) (option if provided) ans.
    LOGIC:
    - - - - - - - - - -


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

    MemberDec 16, 2009

    hey 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.....
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  • cooltwins

    MemberDec 16, 2009

    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
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  • dazzling

    MemberDec 16, 2009

    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?"?
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  • dazzling

    MemberDec 16, 2009

    19 players have played games
    hence answer is c)19
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  • cooltwins

    MemberDec 16, 2009

    dazzling
    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?"?
    YEP YOU ARE RIGHT DAZZLING....👍
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  • cooltwins

    MemberDec 16, 2009

    dazzling
    19 players have played games
    hence answer is c)19
    hey dazzling.....
    just try checking the 23rd question once more....😉
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  • Gurjeet Singh

    MemberDec 16, 2009

    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.
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  • cooltwins

    MemberDec 16, 2009

    cooldudeiet
    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.
    Yeah right cooldudeiet👍
    way to go......
    go on to the next questions....
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  • Gurjeet Singh

    MemberDec 16, 2009

    21: (6 C 2) (1/5)pow2*(1-1/5)pow4 its a binomial distribution
    so after solving 768/3125
    am i right?
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  • cooltwins

    MemberDec 16, 2009

    cooldudeiet
    21: (6 C 2) (1/5)pow2*(1-1/5)pow4 its a binomial distribution
    so after solving 768/3125
    am i right?
    yup you are absolutely right...great going👍
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  • cooltwins

    MemberDec 16, 2009

    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
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  • cooltwins

    MemberDec 16, 2009

    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)
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  • cooltwins

    MemberDec 16, 2009

    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

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  • patsham

    MemberDec 16, 2009

    hey i guess its c)north east...
    its because initially he was at southwest...and north of southwest is north east...
    M i right...???
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  • dazzling

    MemberDec 16, 2009

    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?
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  • Guttu

    MemberDec 16, 2009

    25.1 D
    25.2 both a and c
    25.3 2
    25.4 cannot be determined
    25.5 D
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  • cooltwins

    MemberDec 17, 2009

    dazzling
    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?
    Guttu
    25.1 D
    25.2 both a and c
    25.3 2
    25.4 cannot be determined
    25.5 D
    hey dazzling and guttu,
    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) D



    will post more questions soon😉
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  • Guttu

    MemberDec 17, 2009

    OOps... just one wrong.
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  • cooltwins

    MemberDec 17, 2009

    doesn't matter guttu😀
    wait for more competitive questions👍
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  • dazzling

    MemberDec 17, 2009

    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.
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  • CIVILPRINCESS

    MemberDec 18, 2009

    dazzling
    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.
    hey dazzling,
    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.
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  • Guttu

    MemberDec 18, 2009

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

    MemberDec 18, 2009

    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.
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  • CIVILPRINCESS

    MemberDec 18, 2009

    hey dazzling,
    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 😀
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  • dazzling

    MemberDec 18, 2009

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

    MemberDec 19, 2009

    dazzling
    yes you are correct.i think the initial days should be 100. good job twin.
    yeah the question should be 100.😀
    and what is up with the "twin" you mentioned...did you mean CEan cooltwins :?:
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  • dazzling

    MemberDec 19, 2009

    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..
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  • cooltwins

    MemberDec 19, 2009

    hey dazzling 😀
    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......
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  • cooltwins

    MemberDec 19, 2009

    cooltwins
    hey 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.....
    and by the way this question has been unattended to.....😒

    guys try solving this too.
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  • cooltwins

    MemberDec 19, 2009

    anyway here goes the next one:

    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....👍
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  • dazzling

    MemberDec 19, 2009

    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?
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  • Manish Goyal

    MemberDec 19, 2009

    I am not sure but i think answer will be
    b) for 21 question
    am I right?
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  • CIVILPRINCESS

    MemberDec 19, 2009

    yeah the 22nd qeustion has been answered.

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

    MemberDec 19, 2009

    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.😀
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  • cooltwins

    MemberDec 19, 2009

    goyal420
    I am not sure but i think answer will be
    b) for 21 question
    am I right?
    goyal,
    i think you have made a mistake with the question no. because 21 has no option 😀

    let me know of the correct question😀
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  • Manish Goyal

    MemberDec 19, 2009

    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
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  • cooltwins

    MemberDec 19, 2009

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

    cooltwins
    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........:?:
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  • cooltwins

    MemberDec 19, 2009

    goyal420
    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
    yup,you are right goyal...👍
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  • CIVILPRINCESS

    MemberDec 19, 2009

    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=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
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  • dazzling

    MemberDec 19, 2009

    i got the ans for 28th question .

    ans is 8hrs 10.9090 mins.

    am i right??
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  • cooltwins

    MemberDec 19, 2009

    yeah right CP.

    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?
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  • cooltwins

    MemberDec 19, 2009

    dazzling
    i got the ans for 28th question .

    ans is 8hrs 10.9090 mins.

    am i right??
    yeah you are right dazzling...👍
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  • dazzling

    MemberDec 19, 2009

    ans of 29th question:
    length of train is 280 m.
    length of platform is 20 m.???
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  • cooltwins

    MemberDec 19, 2009

    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.?
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  • cooltwins

    MemberDec 19, 2009

    dazzling
    ans of 29th question:
    length of train is 280 m.
    length of platform is 20 m.???
    no dazzling the answer is not correct....
    do try again with it.:smile:
    ...and provide the solution always along with the answer...😀
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  • cooltwins

    MemberDec 19, 2009

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

    MemberDec 19, 2009

    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...😁
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  • dazzling

    MemberDec 19, 2009

    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= 160m

    length of platform = 300 - length of train

    = 300 - 160

    = 140 m
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  • dazzling

    MemberDec 19, 2009

    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
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  • dazzling

    MemberDec 21, 2009

    Everybody is looking inactive related to aptitude.
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  • cooltwins

    MemberDec 22, 2009

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

    anyway as for the answers:

    dazzling
    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= 160m

    length of platform = 300 - length of train

    = 300 - 160

    = 140 m

    yup dazzling your answer is right....👍

    in qn. no. 29

    the lenght of train is 160m
    the length of platform is 140m
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  • cooltwins

    MemberDec 22, 2009

    dazzling
    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
    cool dazzling both your answers are right...👍
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  • cooltwins

    MemberDec 25, 2009

    sorry 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, ?
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  • cooltwins

    MemberDec 25, 2009

    one 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😀
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  • ratikagoel

    MemberDec 26, 2009

    cooltwins
    one 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
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  • ratikagoel

    MemberDec 26, 2009

    cooltwins
    sorry 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
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  • Manish Goyal

    MemberDec 27, 2009

    cooltwins
    sorry 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, ?
    I think answer is 4
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  • cooltwins

    MemberDec 28, 2009

    ratikagoel
    answer is 3

    two 3
    one 5
    two 4
    one 3
    two 5
    one 4
    two 3
    though your answer is right..... but the logic used is wrong...
    try it again 😀
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  • cooltwins

    MemberDec 28, 2009

    ratikagoel
    answer is 266

    2*5=10
    10*4=40+2=42
    42*3=126+4=130
    130*2=260+6=266
    yeah right......👍
    carry on...
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  • cooltwins

    MemberDec 28, 2009

    cooltwins
    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 :?:
    what about this question guys...
    it is not exactly a tough one...
    give it a try.....
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  • cooltwins

    MemberDec 28, 2009

    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:?:
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  • dazzling

    MemberDec 28, 2009

    cooltwins
    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 :?:

    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
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  • CIVILPRINCESS

    MemberDec 31, 2009

    cooltwins
    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:?:
    i think the answer for this question is he types 250 lines

    am i right...:?:
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  • cooltwins

    MemberJan 4, 2010

    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?
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  • cooltwins

    MemberJan 4, 2010

    dazzling
    cooltwins
    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 :?:

    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
    no dazzling
    check it again
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  • cooltwins

    MemberJan 4, 2010

    CIVILPRINCESS
    i think the answer for this question is he types 250 lines

    am i right...:?:
    yup CP you are right.😀
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  • Guttu

    MemberJan 4, 2010

    cooltwins
    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?
    48ft :idea:
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  • cooltwins

    MemberJan 4, 2010

    yeah right guttu.....👍
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  • cooltwins

    MemberJan 9, 2010

    hello guys, 😀

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

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

    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...
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  • cooltwins

    MemberJan 9, 2010

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

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

    MemberJan 9, 2010

    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
    guys this question still remains unanswered.....😒
    its not that tough so try it...;-)
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  • CIVILPRINCESS

    MemberJan 11, 2010

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


    is answer (4+(4/4))*4
    because that becomes (4+1)*4=20

    am i right...:?:
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  • ratikagoel

    MemberJan 14, 2010

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

    note :-the same rules above apply here also....😀
    ((((8*8)+(8*8))*8)-8-8-8)
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  • cooltwins

    MemberJan 19, 2010

    yeah 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
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  • cooltwins

    MemberJan 19, 2010

    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?

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  • Saandeep Sreerambatla

    MemberJan 19, 2010

    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?
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  • Saandeep Sreerambatla

    MemberJan 19, 2010

    cooltwins
    yeah 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
    Yes I need not guess the age, if suppose I am the captain then its my age 😀
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  • cooltwins

    MemberJan 19, 2010

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

    MemberJan 19, 2010

    English-Scared
    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?
    hey ES,

    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 😛
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  • cooltwins

    MemberJan 20, 2010

    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 :?:
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  • cooltwins

    MemberJan 20, 2010

    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.
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  • vik001ind

    MemberJan 20, 2010

    I think 4 marbles
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  • cooltwins

    MemberJan 20, 2010

    yep you are right...😉

    and what about the 41st question?
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  • cooltwins

    MemberJan 20, 2010

    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 ?
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  • cooltwins

    MemberJan 22, 2010

    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.👍
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  • gaurav.bhorkar

    MemberJan 22, 2010

    cooltwins
    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 :?:
    Is the answer 6.
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  • cooltwins

    MemberJan 23, 2010

    gaurav.bhorkar
    Is the answer 6.
    no check it out again gaurav 😀
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  • cooltwins

    MemberJan 27, 2010

    cooltwins
    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?
    the answer for the last question is:


    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😀
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  • CIVILPRINCESS

    MemberFeb 5, 2010

    cooltwins
    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 :?:
    the answer would be 7 .
    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.
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  • cooltwins

    MemberFeb 5, 2010

    yep you are right princess.😀
    and 43rd remains unanswered...
    come on it is not that tough.
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  • durga ch

    MemberFeb 7, 2010

    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
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  • cooltwins

    MemberFeb 8, 2010

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

    MemberFeb 9, 2010

    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
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  • cooltwins

    MemberFeb 9, 2010

    yeah right shamala 👍
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  • shyamala_sharma

    MemberFeb 9, 2010

    thanq sir😀
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  • cooltwins

    MemberFeb 9, 2010

    i am not a sir 😀

    you just call me cooltwins 😛
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  • shyamala_sharma

    MemberFeb 9, 2010

    ok cooltwins😀
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  • sherya mathur

    MemberFeb 21, 2010

    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 13
    14 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
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  • sherya mathur

    MemberFeb 22, 2010

    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....
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  • sherya mathur

    MemberFeb 22, 2010

    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)



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  • sherya mathur

    MemberFeb 22, 2010

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

    MemberFeb 22, 2010

    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....
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  • sherya mathur

    MemberFeb 23, 2010

    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

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  • cooltwins

    MemberMar 10, 2010

    yeah right shreya

    sorry for the delayed reply

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

    MemberMar 10, 2010

    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 👍
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  • cooltwins

    MemberMar 10, 2010

    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 ?
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  • whiz.kid.aniket

    MemberMar 11, 2010

    cooltwins
    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 ?

    A = 39 cars
    B = 21 cars
    C =12 cars

    ....hope this is right?😒
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  • cooltwins

    MemberMar 12, 2010

    whiz.kid.aniket
    A = 39 cars
    B = 21 cars
    C =12 cars

    ....hope this is right?😒
    yeah right whiz kid 👍

    what about the 45th question ?
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  • whiz.kid.aniket

    MemberMar 13, 2010

    cooltwins
    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 👍

    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!!
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  • cooltwins

    MemberApr 8, 2010

    whiz.kid.aniket
    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!!
    yes you are right whiz.kid.aniket 👍
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  • cooltwins

    MemberApr 8, 2010

    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 😁

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  • s1512

    MemberApr 9, 2010

    is it 9 am i rgt
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  • cooltwins

    MemberApr 10, 2010

    s1512
    is it 9 am i rgt
    sorry but which question's answer is this.😀
    please specify the question number to answer.😁
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  • csiscool

    MemberApr 11, 2010

    sherya mathur
    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

    the correct answer is 48 I think..

    x/2 + x/3 + 8 = x

    5x+48 = 6x

    x = 48
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  • ashish goyal

    MemberApr 11, 2010

    it will be at 9th
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  • cooltwins

    MemberMay 9, 2010

    cooltwins
    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 😁

    what's up people...:?:
    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:
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  • cooltwins

    MemberAug 2, 2010

    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 😁

    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:?:
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  • cooltwins

    MemberAug 2, 2010

    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:?:


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

    think think 😀

    P.S.: the 47th question still remains unanswered😀
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  • vik001ind

    MemberAug 2, 2010

    In Q48 the pages torn are consecutive?
    In q49 is it nine/seven digit no.?
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  • cooltwins

    MemberAug 3, 2010

    vik001ind
    In Q48 the pages torn are consecutive?
    In q49 is it nine/seven digit no.?
    the pages are torn at random. no order. but it may be consecutive also 😉

    sorry for the confusion in q49... it is a seven digit number
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  • vik001ind

    MemberAug 4, 2010

    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.
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  • cooltwins

    MemberAug 4, 2010

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

    what about the other question? any luck........?
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  • vik001ind

    MemberAug 4, 2010

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

    MemberAug 5, 2010

    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:?:
    the answer is zero.
    because adding 4 odds and 4 evens (page nos. of the 4 pages) will give even... so no chance of it being 87(odd)..
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  • cooltwins

    MemberAug 9, 2010

    hey guys whats up?
    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
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  • vik001ind

    MemberAug 10, 2010

    I think its 1!
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  • cooltwins

    MemberAug 10, 2010

    you are right vik 001...... 👍
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  • CIVILPRINCESS

    MemberAug 10, 2010

    cooltwins
    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:?:
    i found the answer 😁

    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 😀
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  • vinsocorp

    MemberAug 11, 2010

    1378 for question 3? Am i correct?
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  • cooltwins

    MemberOct 1, 2010

    yeah you are right 👍
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  • cooltwins

    MemberOct 1, 2010

    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:

    51) i have three numbers in arithmetic progression. when i multiply them i get a prime number. can you find out the numbers?
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  • sam_from_hell

    MemberOct 1, 2010

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

    MemberOct 1, 2010

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

    prime numbers start only from 2
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  • sam_from_hell

    MemberOct 1, 2010

    oops *bangs head on keyboard for being so stupid*
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  • cooltwins

    MemberOct 1, 2010

    no you were not that stupid 😉 😁

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

    MemberOct 3, 2010

    - 3 , -1 and 1
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  • cooltwins

    MemberOct 4, 2010

    absolutely right ES 😀
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  • sam_from_hell

    MemberOct 4, 2010

    moar! 😁 😁
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