an electronic device makes a beep after every
15 minutes . another device makes beep after every 20 minutes . they beeped together at 10.a.m . at what time will they make the next beep together ?
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Given :
Beep Duration of first device =60 seconds
Beep Duration of Second device =62 seconds
To find the interval of beeping together , we need to find the LCM of 60 and 62 first.
60=2×2×3×5
62=2×31
LCM =2×2×3×5×31=1860seconds
Convert time into min
160sec=
60
1860
mins =31 min
electronic devices will beep after very 31 minutes.
hence , both device will together again beep at 10:31 am again.
Answered By= shreyash. ......
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