Correct Answer: Option B
Sum of the present ages of husband, wife and child
= (27 x 3 + 3 x 3) years = 90 years..
Sum of the present ages of wife and child
= (20 x 2 + 5 x 2) years = 50 years..
Husband's present age = (90 - 50) years = 40 years.
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