Question

3 bells ring at intervals of 15,20 and 30 minutes. If they all ring at 12 noon together, at what time
will they ring together again?​

Answer 1

Answer:

L.C.M of three bells = 2 hrs

They will Rang on = 12 pm + 2

= 2 pm

Answer 2

first you have to find the LCM of 15,20and30

LCM is 60.

therefore the bells will ring after 1 hour i.e. at 1p.m

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