Question

A Man age is three his son age ten years ago he was five times his son age Find the present age

Answer 1

let the present age of father be 3x
sons age will be x
also
ten yrs ago
3x-10=5(x-10)
3x-10=5x-50
40=2x
x=20
mans age is 3×20=60yrs
sons age is 20yrs