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?

Answer :

Аноним Аноним
  • 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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