aptitude questions

Replies

• 

  Ankita Katdare

  Answer should be: c)150
  
  As per the data,
  
  40/100 * (max. marks of paper 1) = 60
  
  Hence, Maximum Marks for Paper 1= 60 * (40/100) = 150
• 

  makru921

  questions like these can be easily done by back-substitution (by substituting the answers and seeing if it fits the question)
• 

  Kaustubh Katdare

  Let's look for tough questions.
• 

  makru921

  Have a go at this - quite simple though:
  Two watermelons, A and B, are on sale. Watermelon A has a circumference of 6 inches; watermelon B , 5 inches. If the price of watermelon A is 1.5 times the price of watermelon B, which watermelon is a better buy?
  
  (Assume that the two watermelons are spheres).
  
  (A) A
  (B) B
  (C) Neither
  (D) Both
  (E) Impossible to determine
• 

  Morningdot Hablu

  hm again a simple one.
  suppose price of watermelon B is x.
  then the price of watermelon A is 1.5x.
  .
  Now the question is how to choose the best one among them.
  To do this you have to increase the circumference and price ratio.
  so the circumference and price ratio of watermelon A is 4/x and for B is 5/x.
  So it's better to go with B.
• 

  makru921

  mohit, but i have a different approach...
  
  Let radius of A = Ra
  and radius of B = Rb
  
  Ra/Rb = circumference of A/circumference of B = 6/5
  Therefore the ratio of volumes of A and B is 6^3/5^3
  
  Price of A/Price of B should be 6^3/5^3 if they are priced fairly
  Since actual Price of A/Price of B = 1.5 < 1.7 < 6^3/5^3 -> A is a better buy
  
  What do you think?
• 

  HirenBarbhaya

  for me... answer is (E) Impossible to determine
• 

  aj_onduty

  without much calculatio and considerations, it must be the option B, but I dont know if we have to assume something! 😉
  I would love to see the correct answer!
• 

  Whats In Name

  Nine people went to a hotel. 8 people paid 12rs each of them and the ninth paid 8rs more than the average of all the nine people. The total amount paid by them was?
  Ans: 117
  
  Can Anyone explain me how?I am not getting it.
• 

  sushant005

  hmm
  Let suppose the amount paid by the ninth person be x.
  and the average of all the nine people be y.
  Then according to the question.
  
  Average (y)= (12*8) + x(amount paid by ninth person)/ 9.........(i)
  
  and also given,
  
  X= 8+y.........(ii).
  
  Solving (i) we get,
  
  9y - x = 96
  putting the value of (ii) we get,
  
  9y - (8+y) = 96,
  9y - 8 - y = 96,
  8y = 104,
  y=13,
  The total average of nine people is 13
  now put the value of y=13 in (ii) we get,
  
  x = 8+y
  x=8+13
  x=21
  So the amount paid by ninth person is x=21
  
  Now the total amount paid = (12*8) + 21
  = 96 + 21
  = 117.
  Am i right..
• 

  Yamini L

  quite obvious..
  
  Let the amount paid be 9th person be x.
  Then x = (( 96 + x)/9) + 8 {{average of all nine people + 8}}
  
  Solving the equation you get x= 21 (this is the amount paid by 9th person).
  
  Now add this with (12*8=96 --> amount paid by remaining 8).. 96+21=117
  Hope you got it..
• 

  Whats In Name

  Thanks!I got it 😀
• 

  Sachin Jain

  @ WIN
  Not so difficult.Lets do it.
  Assume the average is x
  Now, Total paid by 8 persons=96
  Amount paid by 9th person = 8+x
  
  Now, (96+8+x)/9=x --------------------------->{ as the avg is x }
  solving for x, -> x=13
  
  So total amount paid is 13*9=117
  Or
  Total = 96+8+13=117
• 

  freak16

  Two watermelons, A and B, are on sale. Watermelon A has a circumference of 6 inches; watermelon B , 5 inches. If the price of watermelon A is 1.5 times the price of watermelon B, which watermelon is a better buy?
  
  friends..
  if we COMPARE BY circumferences i.e in 1 rupee i wll get the more circumference of B.
  BUT if compare by volume the volume of A will be more in 1 rupees.
  so i dun know how to go bout it..
  plz help me out..
• 

  Sachin Jain

  @ freak16
  
  I think we should go by volume thing.
  We actually purchase watermelon according to the weight.
  We never purchase according to circumference.
  
  Say, density be d and assume same for both.
  Then,
  Ratio of Volume_A:Volume_B = 216/125
  Volume_A : Volume_B=1.7 (approx)
  =>
  Mass_A : Mass_B = 1.7 (density gets canceled out)
  Now,
  Price_A : Price_B = 1.5
  
  According to me, Watermelon A is a better buy.
  Correct me, if i am wrong.
• 

  freak16

  I agreed.. YOU ROCK BLUNDER BOy..
  HATS OFF TO YOU...
• 

  rgc437@gmail.com

  ans is 150
• 

  shreyasm89

  Even I had the same approach & I'm pretty sure we both are right!

  makru921

  Have a go at this - quite simple though:
  Two watermelons, A and B, are on sale. Watermelon A has a circumference of 6 inches; watermelon B , 5 inches. If the price of watermelon A is 1.5 times the price of watermelon B, which watermelon is a better buy?
  
  (Assume that the two watermelons are spheres).
  
  (A) A
  (B) B
  (C) Neither
  (D) Both
  (E) Impossible to determine

• 

  antivirus

  hi
  ans is simple...
  let us assume average of all the nine people is x.
  
  and average of 8 people is (12*8)/8 = 96
  hence
  x=(96+(x+8))/9
  x=(104+x)/9
  9x=104+x
  8x=104
  x=13
  
  now, ninth paid 8rs more than the average means (x+8)= 21
  
  total amt = 96+21
  =117
• 

  Jishnu Gupta

  Ans is 150 as simpl as dat.......😛
• 

  ISHAN TOPRE

  Yes answer is 150.
  Its simple.Same explanation as everyone
• 

  Arp

  do (((12*8)+(x+8))/9)=x
  get x and total is 96+x+8..
  ans come.
• 

  Jishnu Gupta

  Bz d good buy .......
• 

  shamily

  maximum mark is 150 is it right