The average age of two friends, A and B, is 24 years. The average age of A, B, and C is 22 years. What is the age of C?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. 18 years.
The average age of two friends, A and B, is 24 years
⇒ (A + B)/2 = 24
⇒ A + B = 48
The average age of A, B, and C is 22 years
⇒ (A + B + C)/3 = 22
⇒ A + B + C = 66
Age of C = 66 - 48 = 18 years