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3 years ago

9

Three lightship flash simultaneously at 6 00 a.m the first lightship flashes every 12 sec the second lightship every 30 sec and

the third lightship every 66 sec
At what time will the three lightship next flshes together

1 answer:

Dmitrij [34]3 years ago

6 0

They will all flash their lights together at 5:00 pm

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