The sum of age of 4 children born at the interval of 2 years each is 48.What is the age of the youngest one?

The sum of age of 4 children born at the interval of 2 years each is 48.What is the age of the youngest one?

A 13

B 15

C 11

D 9

Solution

Correct Answer: Option D

x + (x+2)+(x+4)+(x+6)=48

x=9