A is two years older than B who is twice as old as C. The total of the ages of A, B and C is 27. How old is B?
Choices:
A) 25
B) 20
C) 15
D) 10
E) 5
Let age of C =x. Then,   Age of B =2x   Age of A =2+2x   Total age of A,B and C =27   ⇒(2+2x)+2x+x=27⇒5x=25⇒x=255=5   B's age =2x=2×5=10   Answer is 10.
<result>D</result>
A is two years older than B who is twice as old as C. The total of the ages of A, B and C is 27. How old is B?