Question

a father is 35 years younger than his grandfather and grandfather is 63 years older than him. the sum of Ages of all the three is 112 years. find the age of each one of them

Answer 1

let the age of son be x
then the age of grandfatherfather is x + 63
and the age of father is (x+63)-35
x+28

x + x + x +63 + 28=112
3x+91=112
3x=112-91
x=21/3
x=7
age of son=x=7yrs.
age of father=x+28=7+28=35yrs.
age of grandfather= x+63=7+63=70yrs