Multiple choice

DIRECTIONS for the question: Solve the following question and mark the best possible option. A father tells his son, "I was of your present age when you were born". If the father is 36 now, how old was the boy five years back?

  1. 13

  2. 12

  3. B

  4. 10

  5. NONE OF THESE
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Let the son's age be x and father's age be y. When the son was born (age 0), the father was x. So y - x = x, meaning y = 2x. Given y = 36, then x = 18. Five years ago, the boy was 18 - 5 = 13.

AI explanation

When the boy was born, the father was the age the boy is now, meaning the father is exactly twice the boy's current age. Since the father is currently 36 years old, the boy's present age is 36 / 2 = 18 years. Five years back, the boy was 18 - 5 = 13 years old.

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