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Mathematics, 04.03.2021 01:00 petunia6548

Three neon lights colored red, blue, and green flash at different time intervals. The red light flashes after every 24 seconds, the blue light flashes after every 18 seconds, and the green light after every 15 seconds. If all the three lights flash together at 8:00 am, how many times will all three lights flash together by 9:30 am?

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