bethevans5 bethevans5

12-02-2015
Mathematics

Answered

A red string of lights blinks once every 3 seconds while a string of blue lights blink once every 4 seconds. How many times will both sets of lights blink at the same time in 60 seconds?

Verified Answer :

Anonymous Anonymous

12-02-2015

the string of red lights will blink 20 times and the blue lights will be 15 60 divided by 4 is 15 and 60 divided by 3 is 20

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