Discussion Forum

 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 ?

Answer:

Explanation:

Originally, let there be $x$ men.

Less men, More days (Indirect Proportion)

$\therefore$ $(x-10):x::100:110$

$(x-10)\times 110$ $=x\times 100$ $\Leftrightarrow 10x=1100$ $\Leftrightarrow x= 110$.