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    Question

    A tank can be filled by pipe A in 5 hours and emptied by

    pipe B in 8 hours respectively. How much time will it take for the tank to be filled?
    A 13(1/3)â„Ž Correct Answer Incorrect Answer
    B 8 23 â„Ž Correct Answer Incorrect Answer
    C 12 13 â„Ž Correct Answer Incorrect Answer
    D 6 23 â„Ž Correct Answer Incorrect Answer

    Solution

    A(fill)B(empty) 58 40 (total ) 85 tank fill in 1 hours =8-5=3  time will it take for the tank to be filled=40/3 =13(1/3)h

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