A father said to his son “I was as old as you are at present at the time of your birth”. If present age of father is 38 years, what was the age of the son five years ago ?

The correct answer is (a).

The father’s age is 38 years, and he was as old as his son is now at the time of his son’s birth. This means that the father is 38 years older than his son. Five years ago, the father was 33 years old and the son was 5 years old. Therefore, the son’s age five years ago was 14 years.

Option (b) is incorrect because the son is 14 years younger than his father. Option (c) is incorrect because the son is 33 years younger than his father. Option (d) is incorrect because the son is 38 years old.