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An electronic device makes a beep after every 60 seconds. Another device makes a beep after every 62 seconds. They beeped together at 10 a.m . At what

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An electronic device makes a beep after every 60 seconds. Another device makes a beep after every 62 seconds. They beeped together at 10 a.m . At what time will they beep together at the earliest ?
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Correct Answer - 10:31 hrs
Interval beeping togertehr = LCM (60 seconds, 62 seconds ) = 1860 seconds
` 1860/60 ` min = 31 min
so, they will beep together again at 10:31 min
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