Sam’s present age is two-fifths of the age of his mother age. After 6 years, he will half of the age of his mother. The mother present age is

Sam’s present age is two-fifths of the age of his mother age. After 6 years, he will half of the age of his mother. The mother present age is

A 12

B 35

C 30

D 40

Solution

Correct Answer: Option C

Let’s mother age x

S=2/5X
2/5X+6=1/2(X+6)
(2X+30)/5=(X+6)/2
4x+6 = 5x+30
X=60-30 = 30.