A man is 42 years old and his son is 12 years old. In how many years will the age of the son be half the age of the man at that time?
(A) 13 years
(B) 18 years
(C) 14 years
(D) 19 years
A man is 42 years old and his son is 12 years old. In how many years will the age of the son be half the age of the man at that time?
(A) 13 years
(B) 18 years
(C) 14 years
(D) 19 years