Multiple choice

A father said to his son, "I was as old as you are at the present at the time of your birth". If the father's age is 46 years now, what was the son's age seven years back?

  1. 14 years

  2. 16 years

  3. 15 years

  4. 18 years
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Let father's current age = F = 46, son's current age = S. When son was born (S years ago), father was F - S years old. The statement says father was then as old as son is now: F - S = S. So 46 - S = S, meaning 46 = 2S, so S = 23. Son's age 7 years back = 23 - 7 = 16 years.

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