Question

Three bells ring at the intervals of 10,15 and 12 minutes respectively. If they all ring at 2:00, What time will they ring together again?​

Answer 1

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So let's find the PCM of these 3, and that is 60mins. So 60 minutes after 12 o'clock, all 3 bells will ring together again, ie at 1 o'clock. So, after ringing together at 12 o'clock, the bells will again ring together at 1 o'clock.

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