Question

55 men can finish a piece of work in 20 days, how many additional men must be added to compete the work in 9 days earlier?​

Answer 1

Step-by-step explanation:

Total work=55×20

At present work completed in 20days

But

If we want to complete in 20-9=11days

Then

Time=55×20/11=100

So required extra men=100-55=45men