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 42, the how old is B?	Choices:
A) 16	B) 9	C) 8	D) 11	E) 10
Explanation:   Let C's age be x years. Then, B's age = 2x years. A's age = (2x + 2) years.   (2x + 2) + 2x + x = 42   ⇒ 5x = 40   ⇒ x = 8.   Hence, B's age = 2x = 16 years.   16nswer: 16
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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 42, the how old is B?