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 32, the how old is B?  Choose the correct choice from the following answers:
A) 7  B) 9  C) 8  D) 11  E) 12
Explanation:   Let C's age be x years. Then, B's age = 2x years. A's age = (2x + 2) years.   (2x + 2) + 2x + x = 32   ⇒ 5x = 30   ⇒ x = 6.   Hence, B's age = 2x = 12 years.   Answer: 12
<result>E</result>
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 32, the how old is B?