10 men do a work in 10days. How many men are needed to finish the work in 2days?	Choose the correct choice from the following answers:
A) 50 B) 20 C) 30 D) 10 E) 15

Rationale: "men required to finish the work in 2 days = 10 * 10 / 2 = 50 answer is a"
Answer: A