Question

three bells ring at an interval of 15, 30min, 45min if they ring at 9am when will they ring together again??

Answer 1

Answer:

10:30 am find the LCM of 15 30 45 and add it to 9am

Answer 2

Answer:

10:30 a.m.

Step-by-step explanation:

l.c.m of 15,30 and 45 is 90.

So, they will ring 90 mins or 1 hour and 30 mins later.

So, it is 10:30 a.m.