We observed the traffic lights at three different squares on the same big road. They turn green
every 18 seconds, 24 seconds, 30 seconds, when the signals were switched on at 8 O’clock
in the morning, all the three signals turn green simultaneously again ?
please answer I'll like it please
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Answer:
all these signals would turn green simultaneously again at a time which is a multiple of the three intervals of 60 seconds 120s and 24s, so all these signals turn green simultaneously again after a Time interval which is the LCM of 60seconds 120s and 24seconds
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