A man is 24 years older than his son. In two years, his age will be twice the age of his son. The present age of his son is:
Answer: Option D
Let the son's present age be x years. Then, man's present age = (x + 24) years.
(x + 24) + 2 = 2(x + 2)
x + 26 = 2x + 4
x = 22.