Question 65

The average age of a husband and his wife was 23 years at the beginning of their marriage. After five years they have a one-year old child. The average age of the family of three, when the child was born, was


Sum of ages of husband and wife at the time of their marriage = $$23\times2=46$$ years

Child was 1 year old after 5 years, => child was born 4 years after the marriage.

Sum of the husband and wife after 4 years = 4 years of husband + 4 years of wife

=> Total age = $$46+8=54$$ years

=> Required average = $$\frac{54}{3}=18$$ years     [Child's age was 0, when he was born]

=> Ans - (C)

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