Question

three bells ring at intervals of 15,20 and 30 minutes. if they all ring at 11 am together at what time will they next ring together​

Answer 1

Answer:

Hence, the bells will ring together after 60 minutes. ∵ All the bells were ring at 11.00 a.m. ∴ At 12 noon, all the bells will ring together.

Answer 2

Answer:

at 1 p.m

Step-by-step explanation:

first we will have to take out the l.c.m of 15,20,30 which is 60 which means they will together in 60 minutes or 1 he .so after 12 noon they will ring together at 1 p.m