A man is 30 years older than his son. In three years, his age will be twice the age of his son. The present age of his son is:
Choose the correct choice from the following:
A) 20 B) 21 C) 27 D) 23 E) 24
Let the son's present age be x years. Then, man's present age = (x + 30) years.   (x + 30) + 3 = 2(x + 3)   x + 33 = 2x + 6   x = 27.   Answer:27
<result>C</result>
A man is 30 years older than his son. In three years, his age will be twice the age of his son. The present age of his son is: