Question

Three bells are ringing continuously at intervals of 30, 36 and 45 minutes respectively/ At what time will they ring together again if they ring simultaneously at 8 a.m.?

Answer 1

Answer:

Step-by-step explanation:

we have to find LCM because the action repeats again so its a multiple.

30=3*2*5

36=3*3*2*2

45=3*3*5

therefore LCM is 3^2 *2^2*5=180

therefore they will ring after 180 mins

that is after 3 hrs

so they will ring again at 11 a.m

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