A school starts at 8am. The first bell for the primary school rings after 30 minutes while it ringsfor the senior school after 35 minutes. At what time will the two bell ring together next.
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the two bells will ring together at 3 hours 30 minutes
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9
first you should find LCM of 30 and 35 you get 210 min hence now after 210min both bell ring together that is 11:30
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