Quiz Discussion

The fourth proportional to 5, 8, 15 is:

• 1]

  18

• 2]

  24

• 3]

  19

• 4]

  20

1: 3 = 5/3: x. The value of x is?

• 1]

  1

• 2]

  3

• 3]

  4

• 4]

  5

ratio of ages of B and G is 2:3. B present age is 24. If the ages of B , G and C are in continued proportion, find C age?

• 1]

  50

• 2]

  52

• 3]

  54

• 4]

  56

If a: b = 3:4, b:c = 7:9, c:d = 5:7, find a:d?

• 1]

  5:12

• 2]

  7:12

• 3]

  3:11

• 4]

  5:11

What number has a 5:1 ratio to the number 10?

• 1]

  42

• 2]

  50

• 3]

  55

• 4]

  62

The ratio of the ages of a, b, c, d is 8:10:7:9 respectively. The oldest person is 9 years older than the youngest person. Find the age of a?

• 1]

  22

• 2]

  23

• 3]

  24

• 4]

  25

If a: b = 7: 5, b: c = 9: 11, find a: b: c?

• 1]

  63: 14: 55

• 2]

  63: 45: 55

• 3]

  14: 14: 15

• 4]

  7: 14: 15

The salaries A, B, C are in the ratio 2 : 3 : 5. If the increments of 15%, 10% and 20% are allowed respectively in their salaries, then what will be new ratio of their salaries?

• 1]

  3 : 3 : 10

• 2]

  10 : 11 : 20

• 3]

  23 : 33 : 60

• 4]

  Cannot be determined

Two number are in the ratio 3 : 5. If 9 is subtracted from each, the new numbers are in the ratio 12 : 23. The smaller number is:

• 1]

  27

• 2]

  33

• 3]

  49

• 4]

  55

A policeman starts to chase a thief. When the thief goes 10 steps the policeman moves 8 steps and 5 steps of the policeman are equal to 7 steps of the thief. The ratio of the speed of the policeman and the thief is = ?

• 1]

  25 : 28

• 2]

  25 : 26

• 3]

  28 : 25

• 4]

  56 : 25