Question

The average age of A, B, and C is 20 years. and that of B and C is 25 years. What is the age of A?

Options

• 20 years

• 10 years

• 15 years

• 25 years

Answer 1

10 years

Explanation:

A + B + C = 20 × 3  ......(i)
      B + C = 25 × 2  ......(ii)
⇒          A = 10 years