logo

CuriousTab

CuriousTab

Discussion


Home Aptitude Decimal Fraction See What Others Are Saying!
  • Question
  • A, B, C and D purchase a gift worth ? 60. A pays 1/2 of what others are paying, B pays 1/3rd of what other are paying and C pays 1/4th of what others are paying. What is the amount paid by D?


  • Options
  • A. 14
  • B. 15
  • C. 16
  • D. 13

  • Correct Answer
  • 13 

    Explanation

    Let A, B, C and D pay ?x, ?y, ?z and ?a
    According to the question,
    x = 1/2(y + z + a)
    2x = (y + z + a) ..........(i)
    y = 1/3(x + z + a)
    3y = (x + z + a) ...........(ii)
    z = 1/4(x + y + a)
    4z = (x + y + a) ..........(iii)
    Also, x + y + z + a = 60 ...............(iv)
    Now, put the value of x + y + a = 4z from (iii) in (iv)
    Then, 4z + z = 60 ? 5z = 60
    ? z = 12
    Similarly, on putting the value of x + z + a = 3y from (ii) in (iv), we get
    3y + y = 60 = ? 4y = 60
    ? y = 15
    Again, on putting the value of (y + z + a) = 2x from (i) in (iv), we get
    2x + x = 60 ? 3x = 60
    &ther4; x = 20
    Now, x + y + z + a = 60
    On putting the value of x, y and z, we get
    12 + 15 + 20 + a = 60
    ? a = 60 - 47 = ? 13


  • More questions

    • 1. Two numbers A and B are such that the sum of 5% of A and 4% of B is two-third of the sum of 6% of A and 8% of B. Find the ratio of A : B.

    • Options
    • A. 2 : 3
    • B. 1 : 1
    • C. 3 : 4
    • D. 4 : 3
    • Discuss
    • 2. A train 240 m long passes a pole in 24 seconds. How long will it take to pass a platform 650 m long?

    • Options
    • A. 65 sec
    • B. 89 sec
    • C. 100 sec
    • D. 150 sec
    • Discuss
    • 3. What was the day of the week on 17th June, 1998?

    • Options
    • A. Monday
    • B. Tuesday
    • C. Wednesday
    • D. Thursday
    • Discuss
    • 4. The H.C.F. of two numbers is 11 and their L.C.M. is 7700. If one of the numbers is 275, then the other is:

    • Options
    • A. 279
    • B. 283
    • C. 308
    • D. 318
    • Discuss
    • 5. 
      1872/ ? ? = 234

    • Options
    • A. 324
    • B. 64
    • C. 8
    • D. 256
    • Discuss
    • 6. 
      For every 4 leaps taken by a dog, a cat takes 5 leaps in the same time. But distance covered in 3 leaps of dog is same as that of 4 leaps of cat. Then what is the ratio of speed of dog and cat?

    • Options
    • A. 15 : 14
    • B. 16 :15
    • C. 12 :11
    • D. 10 : 9
    • Discuss
    • 7. 
      A come of height 7 cm and base radius 3 cm is curved from a rectangular block of wood 10 cm x 5 cm x 2 cm. The percentage of wood wasted is?

    • Options
    • A. 34%
    • B. 46%
    • C. 54%
    • D. 66%
    • Discuss
    • 8. 
      1, 9, 25, 49, 81,?

    • Options
    • A. 90
    • B. 135
    • C. 121
    • D. 125
    • Discuss
    • 9. 
      An accurate clock shows the time as 3:00 after hour hand has moved 135°, the time would be?

    • Options
    • A. 7:30
    • B. 6:30
    • C. 8:00
    • D. 9:30
    • Discuss
    • 10. 
      P.V. Narsihma Rao was elected party leader on 29th may, 1991. What was the day of the week?

    • Options
    • A. Tuesday
    • B. Friday
    • C. Wednesday
    • D. Sunday
    • Discuss


    Comments

    There are no comments.

Enter a new Comment