Question

A father is three times as old as the son.Nine years ago, the father was four times as old as the son. Find their present ages.​

Answer 1

3S - 9 =4S( S -9 )

3S - 9 =4S -36

S = 27

The father is 3*27 = 81 years now.

The son is 27 years now.

Answer 2

Answer:

Son —> 27 years old

Father —> 81 years old