A certain number of men can finish a piece of work in 100 days. If there were 10 men less, it would take 10 days more for the work to be finished. How many men were there originally?	Choose the most appropriate option:	A) 120	B) 105	C) 115	D) 110	E) 140
Originally let there be x men.   Less men, More days (Indirect Proportion)   therefore (x-10) : x :: 100 :110   =(x-10)x 110-x(100)   = 10x= 1100   x= 110   Answer is 110.
<result>D</result>
A certain number of men can finish a piece of work in 100 days. If there were 10 men less, it would take 10 days more for the work to be finished. How many men were there originally?