Multiple choice

The average age of husband, wife and child 7 years ago was 42 years and that of wife and child 9 years ago was 36 years. The present age of the husband is :

  1. 50

  2. 55

  3. 48

  4. 57
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

7 years ago, total age of husband + wife + child = 42 × 3 = 126. So present total = 126 + 21 = 147. 9 years ago, wife + child total = 36 × 2 = 72. So present total of wife + child = 72 + 18 = 90. Husband's present age = 147 − 90 = 57 years.

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