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
The correct answer is Option (4) → 10 years
All three ages can be written in terms of C’s age, and their sum is given.
Assuming C’s age to be \(x\) years:
B \(=2x\), A \(=2x+2\)
Sum of the three ages: \(x+2x+(2x+2)=27\)
\(5x=25\), so C is \(x=5\) years old
B \(=2\times5=10\) years