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Question by  Smooti08 (23)

# If a bell rings every 2 hours, a second bell rings every 3 hours, and a third bell rings every 4 hours. if all 3 bells ring at 9:00 am. , at what time will all 3 bells next ring?

I need help with a riddle.

 +1 vote! +8 you voted Answer by  dertr (147) At 9 pm. All the bells ring together every 12 hours, because 12 is the minimum common multiple of two, three, and four. So if the bells ring at 9 am, they will ring again at 9 pm.

 +1 vote! +7 you voted Answer by  jamielove (22) They will ring again at the same time at 9:00 pm. if they rang at 9:00 am.

 +1 vote! +5 you voted Answer by  tamarawilhite (17883) They will all ring every 12 hours, which is the first number divisible by 2, 3, and 4. If the bells all ring at 9 AM, then the next time they will ring is 9 PM.

 +1 vote! +0 you voted Answer by  jamielove (22) It will ring again at 9:00 pm. if it rang at 9:00 am.

 +1 vote! +0 you voted Answer by  whobesidesme (406) You need help with more than a riddle if you can't figure that one out, my friend. I hope you're in elementary school... otherwise there's just no excuse.

gosh no need in being rude to the kid!... not everyone is so sure of themselves like some of us..... just saying.....  add a comment