A certain number of men can do a work in 40 days . If there were 5 men less it could be finished in 10 days more . How many men are there?  Choose the correct choice from the following answers
A) 15 men
B) 25 men
C) 18 men
D) 12 men
E) 14 men
Explanation:   x*40 =(x-5)*50   5x-4x =25   X=25 men   Answer: Option 25 men
<result>B</result>
A certain number of men can do a work in 40 days . If there were 5 men less it could be finished in 10 days more . How many men are there?