Is anyone good here?Four people can mow a lawn in 6 hours. How many more people will be needed to mow the lawn in 4 hours, assuming each person mows at the

6 people

We can use the "see-saw"  principle, here

4 people * 6 hours  = x people * 4 hours

24   =  x * 4   divide both sides by 4

24 / 4  = x   =   6 people

Thanks!