Question

three bells ring at intervals of 8,15 and 9 minutes respectively. once they ring together, after how long will they ring together again​

Answer 1

Answer:

So 60 minutes after 12 o'clock, all 3 bells will ring together again, ie at 1 o'clock.

Another way, non math way, to solve this is

BellA will ring at 12:00, 12:10, 12:20, 12:30, 12:40, 12:50, 1:00

BellB will ring at 12:00, 12:15, 12:30, 12:45, 1:00

BellC will ring at 12:00, 12:20, 12:40, 1:00

So, after ringing together at 12 o'clock, the bells will again ring together at 1 o'clock

it helped r8

mark brainliest

Answer 2

Answer:

LCM of 10, 12 and 15 is 60. Thus after every 60 minutes they will ring together. Thus next they will ring at 9:30 AM.

Logic : After an hour, first bell rangs for 6th time, second bell rangs for 5th time and third bell rangs for 4th time.

HTH