Question

six men can complete a certain work in 20 days .how many men are required to complete the same work in 12 days ?

Answer 1

6 men complete the work in 20 days.

In 1 day it takes:

6 x20 = 120 men

You need to do the same work done in 20 days, in one day. (more manpower)

So, to finish the work in 12 days:

120 men / 12 days = 10 men