A man is 22 years older than his son. In two years, his age will be twice the age of his son. The present age of the son is?
Choose the correct answer.
A) 20	B) 25	C) 27	D) 22	E) 91

Rationale: "let the son ' s present age be x years . then , man ' s present age = ( x + 22 ) years . ( x + 22 ) + 2 = 2 ( x + 2 ) x + 24 = 2 x + 4 = > x = 20 . answer : a"
Answer: A