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 27, then how old is B ?

10 yrs
11 yrs
12 yrs
13 yrs

Correct Answer: 10 yrs

Explanation:

Let C's age be x years.
Then, B's age = 2x years.
A's age = (2x + 2) years.
(2x + 2) + 2x + x = 27
5x = 25 => x = 5
Hence, B's age = 2x = 10 years.

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