The ratio between the presents of the A and B is 2:3. If B is 5 years older than A, what will be the ratio of the ages of A and B after 5 years?
Select.
A) 3 : 4
B) 1 : 2
C) 2 : 3
D) 5 : 6
E) 1 : 3

Rationale: "let a and b ages will be 2 x and 3 x 3 x - 2 x = 5 x = 5 required ratio = 2 x + 5 : 3 x + 5 = 15 : 20 = 3 : 4 answer is a"
Answer: A