The average age of a husband, wife and their child 3 years ago was 27 years. The average age of the wife and child 5 years ago was 20 years. What is the husband’s present age?

Correct answer: B. 40 years

Present total of all three = (27 + 3) × 3 = 90. Present total of wife and child = (20 + 5) × 2 = 50. Husband = 90 − 50 = 40 years.

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Answer and explanation

The correct answer is B. 40 years

Present total of all three = (27 + 3) × 3 = 90. Present total of wife and child = (20 + 5) × 2 = 50. Husband = 90 − 50 = 40 years.