Question

three bells ring at intervals of 5 10 and 15 minutes after how much time will they ring together arranged if they start ringing simataneously

Answer 1

Answer:

Every 30 min

Step-by-step explanation:

5= 5*1

10=5*2

15=5*3

The time interval all above overlap is 5*1*2*3=30 min

So the answer is 30 minutes

Answer 2

Answer:

you have to find the LCM of 5,10,15

Step-by-step explanation:

= 30 minutes

so the bell will start ringing again after 30 minutes.

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