Question

b. Three bells to 11 at intervals of 12 minutes, 15 minutes and 18 minutes respectively. If they start tolling together, after what time will they next toll together?​

Answer 1

Answer:

180 min or 3 hr

Step-by-step explanation:

LCM of 12 15 18 is 180 min

$180min = \frac{180}{60} hr = 3hr$

Three bells will toll together after every 180 min or 3 hours.

Answer 2

Answer:

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