Question

A boy is now one-third as old as his father. After 12 years, he will be half as old as his father . Find their present ages. ​

Answer 1

Answer:

let x=age of boy

3x=age of father

..

12 yrs hence:

x+12=age of boy

3x+12=age of father

3x+12=2(x+12)

3x+12=2x+24

x=12

present age of the boy is 12