Question

8. Before 10 years A was twice as old as B at that time. If A is now 9 years older than B,
Find the present age of B.​

Answer 1

Let B's age = x years.

Then, As age = (x+ 9) years.

(x+9+10)=2(x—10)

hence x=39.

Present age of B = 39 years

Answer 2

Explanation:

Let B's age = x years.

Then, As age = (x+ 9) years.

(x+9+10)=2(x—10)

hence x=39.

Present age of B = 39 years