The sum of the ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child?
A
4 years
B
8 years
C
10 years
D
None of these
Correct Answer: 4 years
Let the age of youngest child be x then the age of other children ( x + 3) , (x + 6), (x + 9), (x + 12) Then, x + (x + 3) + (x + 6) + (x + 9) + (x + 12) = 50 5x = 20 x = 4