Question

three bells ring at intervals 12,15,and 18 minutes. They rang together at 10.30 a.m. when will they ring together next.​

Answer 1

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

hope it helps you

happy Chocolate Day

Answer 2

Answer:

when LCM taken gives 300

300÷60

= 5 hours

they will ring together at 3:30 p.m.