+0  
 
0
477
3
avatar+493 

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 same rate?

ant101  Mar 23, 2017
 #1
avatar+85 
0

6 people

JoeTheCat  Mar 23, 2017
 #2
avatar+87293 
0

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

 

 

cool cool cool

CPhill  Mar 23, 2017
 #3
avatar+493 
+1

Thanks!

ant101  Mar 23, 2017

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