Question

three bells ring at intervals of 20 minutes 30 minutes and 45 minutes respectively if all three bells ring together at 3 a.m. then at what time will all the three bells ring together again?
please answer with full explanation​

Answer 1

Answer:

To find the minimum time,we have to find the LCM of 20,25,30

20=2*2*5

25=5*5

30=3*2*5

LCM =2*2*3*5*5

=300 minutes

=5 hours  

therefore,at 4 p.m, they will meet again  

Step-by-step explanation:

plz mark as brainliest..

Answer 2

Step-by-step explanation:

From the given information we concluded that we have to find the LCM of the 20,30,45

LCM of the 20,30,45 = 180

Hence they will meet after 3 hours at 6 a.m.