2018 · Q31
At present the average of the ages of a father and a son is 25 years. After seven years the son will be 17 years old. What will be the age of the father after 10 years?
Elementary MathematicsStatistics
- A44 years
- B45 years
- C50 years
- D52 years
Explanation
Father + son = 2 × 25 = 50 years now. The son will be 17 after 7 years, so he is 10 now and the father is 40 now. After 10 years the father will be 50, option (C).