A certain numbe of men can finish a piece of work in 100days.If have were 10 men less it would take to days more for the work to be finished.How many men were there originally?
Originally let there be x men.
Less men, More days (Indirect Proportion)
Therefore, (x-10) : x :: 100 :110
=> (x – 10) * 110 = x * 100 => x= 110