A man had 7 children. When their average age was 12 years, a child aged 6 years died. Then average age of remaining six children is :

A. 13 years

B. 10 years

C. 11 years

D. 14 years

Answer: Option A

Solution(By Examveda Team)

According to the question,
Average age of 7 children = 12 years
Sum of ages of 7 children = 84 years
If a child aged 6 years died then
Sum of aged of 6 children = 84 - 6 = 78 years
∴ Average = $$\frac{78}{6}$$ = 13 years