Question

In 10 years, A will be twice as old as B was 10 years ago. If A is now 9 years older than B, the present age B is

• A. 9 years
• B. 19 years
• C. 29 years
• D. 39 years
• E. 46 years

Answer 1

The correct option is D

39 years

let the present ages of A and B be x and y respectively

x + 10 = 2(y - 10)

x= y +9

y =39