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The average age of a husband and a wife was 27 years when, they married 4 years ago. The average age of the husband, the wife and a new-born child is 21 years now. The present age of the child is

A4 years

B3 years

C2 years

D1 year

Answer:

D. 1 year

Read Explanation:

Husband and wife (total present age) = 2 x (27+4) = 62 years Total present age of all = 3 x 21 = 63 years => Child age = 63 - 62 = 1 year


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