A father tells his son “I was your present age when you were born”. If the father is 64 years old now, the age of son after 10 years will be

The correct answer is (c).

The father’s age is 64 years old now, and he was the son’s present age when the son was born. This means that the father is 64 – the son’s present age years older than the son. In 10 years, the father will be 64 + 10 = 74 years old. The son will be 74 – (64 – the son’s present age) = 38 years old.

Option (a) is incorrect because 42 is not the difference between 64 and the son’s present age.

Option (b) is incorrect because 44 is not the difference between 64 and the son’s present age.

Option (d) is incorrect because 50 is not the difference between 64 and the son’s present age.