Question

B is elder to A by 4 years. Five years ago, the age of B was 9 years. What will be the sum of their ages after five years

Answer 1

B = A + 4

B - 5 = 9

B = 14

14 = A + 4

A = 14 - 4

A = 10

(A + 5) + (B + 5) = (14 + 5) + (10 + 5) = 19 + 15 = 34