three bells ring at intervals of 30 minutes 40 minutes and 60 minutes in a college . if they all ring at 7:30 a.m. together , at what time will they ring together again ?
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they will ring together at 3.00 pm
7.30 am+7.30 = 3.00pm
hope this helps you quickly
7.30 am+7.30 = 3.00pm
hope this helps you quickly
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