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Mathematics, 30.01.2020 10:03 anitadefrances

Ared string of holiday lights blinks once every 3 seconds, while a string of blue lights blink once every 4 seconds. how many times with both sets of lights blink at the same time in a minute

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Ared string of holiday lights blinks once every 3 seconds, while a string of blue lights blink once...

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