Four bells toll at an interval of 10s,15s,20s and 30s respectively. If they all toll together at 10am, at time will they toll together for first time aftet 10am
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The time interval between simultaneous tolling of the bells = LCM(10, 15, 20, 30) seconds = 60 seconds = 1 minute
Hence, the bells will toll together again for the first time after 10:00 am at 10:01 am.
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