SOLUTION: A yellow neon light blinks every 6 seconds, a pink neon light blinks every 5 seconds,and a red neon light blinks every 4 second. How many times within 30 minutes will they blink to
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-> SOLUTION: A yellow neon light blinks every 6 seconds, a pink neon light blinks every 5 seconds,and a red neon light blinks every 4 second. How many times within 30 minutes will they blink to
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Question 1123968: A yellow neon light blinks every 6 seconds, a pink neon light blinks every 5 seconds,and a red neon light blinks every 4 second. How many times within 30 minutes will they blink together.? Found 2 solutions by Alex.33, Alan3354:Answer by Alex.33(110) (Show Source):
You can put this solution on YOUR website! In this case we're finding the common multiples of 6,5,and 4, within 30.
6=2*3
4=2*2
5=1*5.
a common multiple must contain each factor in all numbers at least once.
smallest common multiple: 2*2*3*5=60.
So unlucky...0 times.
You can put this solution on YOUR website! A yellow neon light blinks every 6 seconds, a pink neon light blinks every 5 seconds,and a red neon light blinks every 4 second. How many times within 30 minutes will they blink together.?
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The LCM = 60 seconds --> coincident once per minute.
30 minutes --> 30 coincident blinks,
OR 31 if it's from zero to 30 inclusive.