Question

    Two taps A and B can fill a tank in 12 hours and 15

    hours respectively. If the two taps are opened at 12 PM, then at what time (in PM) should the tap B be closed to completely fill the tank at exactly 8 PM?
    A 8:00 PM Correct Answer Incorrect Answer
    B 8:00 PM Correct Answer Incorrect Answer
    C 5:00 PM Correct Answer Incorrect Answer
    D 10:00 PM Correct Answer Incorrect Answer

    Solution

    The correct answer is C

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