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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
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- 23 years
- 24 years
- 18 years
- 20 years
- 23 years
Correct Option: C
Here , At the beginning of their marriage ,The average age of a husband and his wife = 23 years
After five years of marriage, age of ( Husband + wife + child ) = 46 + 10 + 1 = 57 years
At the time of birth of child, age of ( Husband + wife + child ) = 57 – 3 = 54 years
∴ Required average age = 54 ÷ 3 = 18years
