t1u1ckdarcusey t1u1ckdarcusey

16-11-2016
Mathematics

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A tank can be filled in 60 minutes and drained in 90 minutes. how long would it take to fill the tank if the drain were accidentally left open while the tank was being filled?

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maxbars maxbars

17-11-2016

it would take an hour and a half to fill the tank

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