Answers

2016-04-26T16:42:21+05:30
Find the LCM of 6, 8, 9 and 12 which will be 72. Which means that after every 72 seconds all four bells will at the same time. So, the next bell at the same time will be 12:01:12.
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i knew this but the answer given is 1 hour.........:( that's why i am struck to this silly question