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Two hoses are pouring water into an empt...

Two hoses are pouring water into an empty pool. Hose 1 alone would fill up the pool in 6 hours. Hose 2 alone would fill up the pool in 4 hours. How long would it take for both hoses to fill up two - thirds of the pool?

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The correct Answer is:
`1(3)/(5)` hours
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