Question

Three bells ring at interval of 5,15 , 30 minutes. If they all ring at 10:00am together at what time will they again ring together.

Answer 1

Answer:

lcm of 5,15and 30 is 30

so they all rang together after 30 mins

it means at 10:30am

.....666....

Answer 2

Answer:

10:30 am

Step-by-step explanation:

Because if we take out the lcm of 5 minutes,15 minutes and 30 minutes is 30 minutes.So the bell ring together after 30 minutes.