Problems on Ages

JKSSB Class-IV & MTS · Mathematics · 12 practice questions with answers and explanations: 2 Easy, 6 Medium, 4 Hard.

Sample questions

Sample Easy question 1

The ages of A and B are in the ratio 3 : 5 and their sum is 40 years. Find A's age.

  1. 15
  2. 20
  3. 12
  4. 25
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Answer: A. A = 3/8 × 40 = 15 years.

Sample Medium question 2

The sum of the ages of a mother and her daughter is 45 years. Five years ago the mother was four times as old as the daughter. Find the mother's present age.

  1. 33
  2. 39
  3. 36
  4. 30
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Answer: A. m + d = 45 and m − 5 = 4(d − 5). So 45 − d − 5 = 4d − 20 → 5d = 60, d = 12 and m = 33.

Sample Hard question 3

Ravi is half as old as Meena. In 6 years, Ravi's age will be two-thirds of Meena's age. Find Meena's present age.

  1. 12
  2. 14
  3. 18
  4. 10
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Answer: A. Let Meena = m, Ravi = m/2. m/2 + 6 = (2/3)(m + 6) → m/2 + 6 = 2m/3 + 4 → m/6 = 2 → m = 12.

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