A is 2 years older than B and B is twice as old as C. If the sum of the ages of A, B and C be 27 years, then how old is B?
Answer & explanation
Correct answer: option 4
A is 2 years older than B
B is twice as old as C.
The sum of the ages of A, B and C be 27 years.
So,
let age of C be (x)
=> age of B = 2x
=> age of A = 2x + 2
=> x + 2x + 2x + 2 = 27
=> 5x = 25
So, x = 5
Thus, the age of B is 5 x2 = 10yrs old.