a traffic light makes a beep after every 15 minutes at the device makes a beep after 20 minutes be together at 6 am at what the will they next beep together
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at 7pm both the beep will accur
Digbijay215:
plese say me the processsss
for every 1hour there is 3-20min and 4-15min. they are asking that after 6 o clock when both will beep together so both will beep together at7
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