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amber can mow the lawn it 2 hours. It takes Michelle 3 hours to mow it. If they work together, how long will it take them to maw the lawn?
Guest Apr 3, 2012
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[input](2hours+3hours)/2 in hours[/input]

explanation:
on one day: "amber can mow the lawn it 2 hours"
a week later: "It takes Michelle 3 hours to mow it."

total, it took 5hours (2+3), but they mowed the lawn two times, the time if they work together, (2+3)/2
admin  Apr 3, 2012

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