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OpenStudy (anonymous):
A new type of pump can drain a certain pool in 8 hours. An older pump can drain the pool in 12 hours. How long will it take both pumps working together to drain the pool?
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OpenStudy (anonymous):
i would have to say an hour and 30 min
OpenStudy (anonymous):
XD
OpenStudy (anonymous):
anyone agree??
OpenStudy (anonymous):
or am i the only one here other than reaves?
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