Son's age is one-third of father's age. In 12 years from now son's age will be one-half of the father's age. What is the age of the son at present?

Son's age is one-third of father's age. In 12 years from now son's age will be one-half of the father's age. What is the age of the son at present?

A 6

B 10

C 24

D 12

Solution

Correct Answer: Option D

Suppose,

Father 's age = x years

Son's age = x/3 years

After 12 years,

after 12 years,

Father's age =x+12 years

Son's age = x/3 + 12 years

here,

x/3+12 = 1/2 ( x+12)

or. x = 12