1 worker=1/5 grass per hour
6 workers
number of workers times work each worker does times time needed=total work done
5 times ? times 1=1 lawn
?=1/5 lawn
1 worker does 1/5 lawn in 1hour
6 workers
work is 1/5
time=?
total work=1
6 times 1/5 times ? =1
6/5 times ?=1
times 5/6 both sides
?=5/6
it takes 5/6 hour or 50 minutes
