The average age of husband and his wife was 24 years at the beginning of their marriage. After 4 years they have a one year old child. The average age of the family of three, when the child was born was:
Answer & explanation
Correct answer: option 2
At the beginning of their marriage ,
The average age of a husband and his wife = 24 years
Total age of husband and wife is = 48 years
After four years of marriage,
Age of ( Husband + wife + child ) = 48 + 8 + 1 = 57 years
At the time of birth of child, age of ( Husband + wife + child ) = 57 – 3 = 54 years
∴ Required average age = \(\frac{54}{3}\) = 18 years