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Question

An electric device make a beep every 60seconds.Another device makes a beep after 62seconds .They beeped together at 10:00am.Find the time when they will next time make a beep together at the earliest


Solution

First take LCM of 60sec and 62sec, we get,
1860sec
now, convert it into min
therefore, 1860sec=1860/60=31min
hence, they will beep together at 10:31a.m

Mathematics

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