Question

A man was thrice as old as his son after 5 years the man was only three times old as his son find their present age​

Answer 1

let the man's age be x.

and son's age be y

1 case

x =3y

a/q

after five years,

(x+5) = 3(y+5)

x +5 = 3y + 15

x-3y = 10