Question

The age of the father 10 years ago was thrice the age of his son. Ten years hence, the father's age will be twice that of his son. What is the ratio of their present ages?

Let the ages of father and son 10 years ago be 3x and x years respectively. Then, 3x 10 10 2x 10 10 3x 20 2x 40 X 20 Required ratio 3x10 x 10 7030 73

A 3 : 2

B 7 : 3

C 5 : 3

D 5 : 2

Detailed Solution