Question

Three bells toll at intervals of 9, 12, 15 minutes. If they start tolling together, after what time
will they next toll together?​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

3 hours later

Step-by-step explanation:

We need to find LCM

LCM of 9, 12 and 15 is 180

180 mins = 3 hours

So, they will start tolling/ringing after 3 hours

Hope it helps

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