Question

please explain me this question​

Answer 1

let the age of baichang=x years

baichang father's age=X+29 years

baichang grandfather's age=X+29+26=X+55 years

According to question

x+x+29+x+55=135

x+x+x+29+55=135

3x+29+55=135

3x+84=135

3x=135-84

3x=51

x=51/3

x=17

baichang age=x=17years

baichang father's age=x+29=17+29=46years

baichang grandfather's age=x+55=17+55=72years