Question

A is two years older than B who is twice as old as C. If the total of the ages of A, B and C be 27, the how old is B?

• A. 10
• B. 9
• C. 8
• D. 7

Answer 1

Answer:

A. 10

Let C's age be x years. Then, B's age = 2x years. A's age = (2x + 2) years. ∴ (2x + 2) + 2x + x = 27 ⇒ 5x = 25 ⇒ x = 5. Hence, B's age = 2x = 10 years