Question

age of raj and rohit are in ratio 8:15 after a year the ratio will be 11:8. what is the difference between their present age?

Answer 1

7 year of difference between them

Answer 2

Age of Raj be x Rohit be y

Eq1. 8/15 = x/y

=>. 8y = 15x

Eq2. 11/8 = x+1/y+1

=>. 11y +11 = 8x +8

11y = 8x - 3

Solving the equations you will get the answer

Answer is | x- y |