The average age of a husband and wife, who were married 4 years ago, was 25 years at the time of their marriage. The average age of the family consisting of husband, wife and a child, born during the interval is 20 years today. The age of the child is
Options:
A . 2 years
B . 1 year
C . 3 years
D . 2.5 years
Answer: Option A Answer: (a)Sum of the present age of husband and wife = 2 × 25 + 2 × 4 = 58 years Sum of the present age of husband, wife and child = 3 × 20 = 60 years &there; Child’s present age = 60 – 58 = 2 years
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