# URGENT HELP PLEASE at 10am three bells ring together. The large bell rings every four minutes, the old bell rings every 7 minutes and the small bell rings every three minutes. When will be the next time that all the three bells ring together?

2 answers

###### Question:

URGENT HELP PLEASE

at 10am three bells ring together. The large bell rings every four minutes, the old bell rings every 7 minutes and the small bell rings every three minutes. When will be the next time that all the three bells ring together?

at 10am three bells ring together. The large bell rings every four minutes, the old bell rings every 7 minutes and the small bell rings every three minutes. When will be the next time that all the three bells ring together?

## Answers

Large bell = 4 minsOld bell = 7 minsSmall bell = 3 minsLCM = 4 x 7 x 3 = 84It will ring together again after 84 mins.84 mins after 10am = 11:24-----------------------------------------------Answer: 11:24-----------------------------------------------

Old bell: once every 7 minutesSmall bell: once every 3 minutes.Large bell: 4 minutesThe first time they will ring together is at the lowest common multiple of 7,3 and 4.

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