A father is three times as old as his son. The sum of their ages is 48. How old is the son?

Correct answer: A. 12 years old

Let the son be s and the father 3s. Then 4s = 48, so s = 12 and the father is 36. Check: 36 = 3 × 12 and 12 + 36 = 48. The "parts" method gives the same result: 1 part + 3 parts = 4 parts = 48.

easy

Answer and explanation

The correct answer is A. 12 years old

Let the son be s and the father 3s. Then 4s = 48, so s = 12 and the father is 36. Check: 36 = 3 × 12 and 12 + 36 = 48. The "parts" method gives the same result: 1 part + 3 parts = 4 parts = 48.

Topic: Age and Number Problems MCQs · Subject: Numerical Ability