Question

The present age of vinodbhai is three times more than the present age of his son.Before ten years his age was five times more than the age of his son. Find the present ages of both.

Answer 1

age of the son is 20 years while age of the Vinodbhai is 60 years.

Answer 2

let  the age of  son be x 
then vinodbhai  will  be=3x
therfoer  before 10 years  there boths age was 
 father=10-3x
son =10-x
so before  10  years 
10-x\5=10-3x
5-x=10-3x
3x-x=10
2x=10
x=5
therefore 
x=5
3x=15