Math, asked by hunny21, 1 year ago

the traffic lights at three different roads crossings change after every 48sec., 72 sec. and 108 sec. respectively. if they all change simultaneously at 8hours then at what time will they again change simultaneously

Answers

Answered by sakshiagrawal
2
The L.C.M comes out to be 432 seconds i.e. 7.2 minutes
So after 7.2 minutes they will change again simultaneously

hunny21: how will 7.2will come
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