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OpenStudy (anonymous):
Chance can wash the car in 2 hours, while Sandy can wash the same car in 4 hours. How many hours would it take for them to wash the car together?
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OpenStudy (anonymous):
is it 3/4 hours?
OpenStudy (ddcamp):
\[\frac{ 1 }{ Time\ for\ Chance } + \frac{ 1 }{ Time\ for\ Sandy } = \frac{ 1 }{ Time\ together }\]
OpenStudy (anonymous):
okay i think i got it
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