Answers

2015-11-30T10:29:41+05:30
You need to take LCM of the four numbers ,

LCM will be 3600 , it means that after 3600s they will repeat , Converting to minutes = 3600/60 = 60 min. = 1 hour

So every hour bells toll together , so after 9:00am they will toll together at 10:00am
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