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8th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-15

  • question_answer
    A pipe can fill a tank in 5 hours, while another pipe can empty it in 6 hour. If both the pipes are opened simultaneously, how much time will be taken to fill the tanks?

    A)  30 hours

    B)  20 hours

    C)  25 hours                      

    D)  15 hours

    E)  None of these

    Correct Answer: A

    Solution :

    Not Available                


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