Question 168962
A traffic light flashes red for 50 seconds, yellow for 5 seconds, and green for 65 seconds. 
For what fraction of a 24-hour day is the traffic light yellow? Leave answer in lowest terms.
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yellow/(all colors) = 5/(50+5+65) = 5/120 = 0.0416666667 = 4.2%
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Cheers,
Stan H.