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    Solve this:

    Solve this: 13 Four bells ring at intervals of 3, 7, 12, and 14 minutes, respectively. All four rang together at 12 noon. When will they ring together again?

    Dear Student, 
    Kindly refer to the link for the similar query.
    https://www.meritnation.com/ask-answer/question/there-are-four-bells-which-ring-at-intervals-of-3-7-12-an/number-systems/8006507
    Here it is in the minute. It will ring after 84 mins. So next time it will ring at 01:24 PM
    Regards

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    AT 12:14
    AS IN 14 MINUTES ALL FOUR WILL BE RINGING RESPECTIVELY
    • 0