What is the present age of the child?
The average age of a husband and wife, who were married 7 years ago, was 25 years at the time of their marriage. now the average age of the family, including husband, wife and a child (born during the interval) is 22 years. What is the present age of the child?
- 4 years
- 2 years
- 5 years
- None of these
Answer: (2) 2 years
The average age of a husband and his 7 years ago = 25 years
Then, the sum of their present age = 2 (25 + 7)
= 2 x 32
= 64 years
A child born within 7 years so, their average ages is 22 years
Then, the sum of their age = 3 x 22
= 66 years
Thus, the present age of child = 66 – 64
= 2 years
Hence, the correct answer is option (2) 2 years.