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8th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-6

  • question_answer
    Two pipes A and B can fill a tank in 36 hours and 45 hours respectively. If both the pipes are opened simultaneously, how much time will be taken to fill the tank?

    A)  10 hours                      

    B)  20 hours

    C)  30 hours                      

    D)  40 hours

    E)  None of these

    Correct Answer: B

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