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 72, then how old is B?
Choices
A) 28 years  B) 19 years  C) 29 years  D) 10 years  E) 12 years
Let C's age be x years.   Then, B's age = 2x years.   A's age = (2x + 2) years.   (2x + 2) + 2x + x = 72   5x = 70 =&gt; x = 14   Hence, B's age = 2x = 28 years.   28 yearsnswer: 28 years
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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 72, then how old is B?