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 47, then how old is B?
Choose the correct choice from the following: A) 7 B) 8 C) 9 D) 18 E) 11
Let C's age be x years.   Then, B's age = 2x years.   A's age = (2x + 2) years.   (2x + 2) + 2x + x = 47   5x = 45 =&gt; x = 9   Hence, B's age = 2x = 18 years.   ANSWER:18
<result>D</result>
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 47, then how old is B?