Question

The present age of son is half of the present age of his mother .ten years ago his mothers age was thrice the age of her son.what is the present age of the son

Answer 1

let present age of mother= x
.................................son= x/2
ten year ago
age of mother = x-10
............son= x/2- 10
a/q
x-10= 3(x/2-10)
2(x-10)= 3(x-20)
2x-20=3x-60
x= 40
so present age of son = x/2=40/2=20