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10th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-17

  • question_answer
    Six bells commence tolling together and toll at intervals of 2, 4, 6, 8, 10 and 12 seconds respectively. In 30 minutes, how many times do they toll together?

    A)  4                                

    B)  10

    C)  15                               

    D)  16

    E)  None of these

    Correct Answer: D

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