A bell rings every 10 minutes and a buzzer whistles every 15 minutes. as the the bell and the buzzer go off simultaneously at 08 am, what time will it be when they go off together again?
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Answer:
LCM ( 10,15) = 30
Step-by-step explanation:
THEY WILL GO OFF SIMULTANEOUSLY AFTER 30MINS I.E 8:30 AM
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