Math

Four hoses are filling a pool. The first hose alone would fill the pool in 4 hours while the second hose takes 6 hours. The third hose and the fourth hose each take 8 hours to fill the pool. How long would it take to fill the pool if all 4hoses are turned on?

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  1. 1/x = 1/4 + 1/6 + 1/8 + 1/8
    x = 3/2

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  2. 1.5 hours

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