Asked by CHLOE

If a red light flashes every 3 seconds, a blue light flashes every 4 seconds and a blue light flashes every 5 seconds and they all flashed together at midnight when would be the next time they all flash together?

9 years ago

Answered by Ms. Sue

What is the least common multiple of 3, 4, and 5?

9 years ago

Answered by Anonymous

In an hour

9 years ago

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Asked by CHLOE

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