Question

in a stop there are 3 clocks which chime at intervals of 15 20 and 30 minutes respectively .they all chime together at 10 am at what time will they all chime together again?

Answer 1

hii mate!!

The clocks chime at intervals of 15, 20, 30 minutes respectively..
All chime together at 2 pm.
All will together chime again in LCM of 15, 20 and 30  minutes.

So  the LCM is 60 min or 1 hour.

So they will chime again at  3 pm,  then at 4 pm,  at 5 pm and so on.


hope it helps !!☺☺☺☺