A group of men decided to do a work in 20 days, but 8 of them became absent. If the rest of the group did the work in 28 days, Find the original number of men?  Pick one:
A) 60	B) 28	C) 40	D) 50	E) 25

Rationale: "original number of men = 8 * 28 / ( 28 - 20 ) = 28 answer is b"
Answer: B