Question
tom can mow a lawn in 4 hours. perry can mow the same lawn in 5 hours. how long for them to mow the lawn together?
Answers
Ms. Sue
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Gita
(1/4)+(1/5)=9/20
Then in one hour they can do 20/9
60*20/9= 133 minutes
Then in one hour they can do 20/9
60*20/9= 133 minutes