SOLUTION: The cycle of a traffic light at an intersection of two streets is 35 seconds​ green, 5 seconds​ yellow, and 10 seconds red. If you reach the intersection at a random​ time, w

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Question 1153665: The cycle of a traffic light at an intersection of two streets is 35 seconds​ green, 5 seconds​ yellow, and 10 seconds red. If you reach the intersection at a random​ time, what is the probability that the light is​ red?
Answer by ikleyn(52812)   (Show Source): You can put this solution on YOUR website!
.

This probability is the ratio of the duration of red light (10 seconds) and the full cycle duration of 


    35 + 5 + 10 = 50 seconds.


So, the probability under the problem's question is  P =  =  = 0.2 = 20%.    ANSWER


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