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    Question

    There are two pipes to fill a tank. Together, they can

    fill the tank in 15 minutes. If one pipe can fill the tank in one and a half times as fast as the other, the faster pipe alone can fill the tank in:
    A 10 minutes Correct Answer Incorrect Answer
    B 25 minutes Correct Answer Incorrect Answer
    C 20 minutes Correct Answer Incorrect Answer
    D 32(1/2) Correct Answer Incorrect Answer

    Solution

    The correct answer is B

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