Three bells ring at intervals of 10,12 and 15 minutes. If they rang together at 8:30 a.m. when will they ring together again??
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Answer:
Noon is the answer. The LCM of 10, 15, and 20 is 60. After 60 minutes, they ring together again.
Answered by
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LCM of 10, 12 , 15 is 60 , so Bells will ring together after 60 minutes i.e 1 hour so they will ring together at 9:30 AM
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