The trust lights at three different Road crossing around changes after every 48 seconds 72 seconds and 108 seconds if they change Simon tennis Lee when will light again simultaneously
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Answer:
7 min 12 sec
Step-by-step explanation:
48 = 2*2*2*2*3
72=2*2*2*3*3
108=2*2*3*3*3
Lcm=432
432 sec = 7 min 12 sec
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