Question

(c) Three bells toll together at intervals of 5, 10 and 15 minutes. If they
first toll together at 7:00 p.m., at what time will they toll together again?
Also, find out if the bells will toll together at 8:20 p.m.​

Answer 1

Answer:

Step-by-step explanation:

LCM  of 5,10,15

5 = 1*5

10 = 2*5

15 = 3*5

LCM =2*3*5 = 30

Therefore, bells wil together toll again in 30 mins

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