The average age of A and B is 24 years. If C replaced A, the average would be 20 and if C replaced by B, the average would be 22. What are the ages of A, B, and C respectively?

A. 26, 22, 18
B. 13, 39, 34
C. 29, 15, 33
D. 9, 21, 39

Solution of This MCQ:

A+B = 2*24 = 48
B+C = 2*20 = 40
A+C = 2*22 = 44
A+B+C = 66
Hence A = 26, B = 22 and C = 18 years.