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March 26, 2017

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One pump can drain the pool in 11 minutes. When a second pump is used, it only takes 9 minutes. How long would it take the second pump to drain the pool if it were the only pump in use?

  • Algebra - ,

    Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. See your later post. Thank you.

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