Question

the total age of father and the son is 63 years ratio of their age is 5:2 after 10 years the age of the son is

Answer 1

let age of father =X
age of son = Y
x+y=63.....(1)
x/y=5/2
x=5y/2......(2)
substitute (2) in (1)
5y+2y/2=63
7y=126
y=18
age of son=18
after 10 years = 18+10=28

age of son after 10 years is 28