2. The traffic lights at three different road crossings change after every 48 seconds, 72 seconds and
108 seconds respectively.If they change simultaneously at 7 a.m. At what time will they change simultaneously again?
Answers
Answered by
3
Answer:
L.C.M of 48, 72, 108 = 2 x 2 x 2 x 2 x 3 x 3 x 3 = 432 sec.
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yusraapex:
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Answered by
3
Answer:
48 ,72 and 108 take LCM
lcm=432
so now, convert it to min
432/60=7.20 minutes
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Step-by-step explanation:
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