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15 October, 13:42

A red string of holiday lights blinks once every 3 seconds, while a string of blue lights blinks every 4 seconds. how many times will both sets of light blink at the same Time in 1 minute?

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  1. 15 October, 13:54
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    The red light string will blink 20 times and the blue 15 60 divided by 4 is 15 & 60 divided by 3 is 20
  2. 15 October, 14:10
    0
    The answer would be five times.

    A common factor of 3 and 4 is 12.

    Since there are 60 seconds in a minute, you would divide 60 by 12.

    60/12=5.

    Thus, your answer is 5 times.
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