A group of men decided to do a work in 8days, but 3 of them became absent. If the rest of the group did the work in 10days, Find the original number of men?	Choose the correct choice: A) 15 B) 20 C) 30 D) 25 E) 18

Rationale: "original number of men = 3 * 10 / ( 10 - 8 ) = 15 answer is a"
Answer: A