Question

26. 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

Answer:

This question is related to LCM

Step-by-step explanation:

9,12,15

Find the LCM of 9,12 and 15

Answer 2

Answer:

2 hours 40 minutes

Explanation:

The LCM is the answer.

9 = 3*3

12 = 3*4

15 = 3*5

LCM = 3*3*3*4*5 = 160 minutes = 2 hours 40 minutes

So, they will again ring after 2 hours 40 minutes.

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