SOLUTION: a traffic light is red for 25 sec, yellow for 5 sec, and green for 55 sec. What is the probability that when you reach the light it is not green.

Algebra ->  Probability-and-statistics -> SOLUTION: a traffic light is red for 25 sec, yellow for 5 sec, and green for 55 sec. What is the probability that when you reach the light it is not green.      Log On


   

Question 436505: a traffic light is red for 25 sec, yellow for 5 sec, and green for 55 sec. What is the probability that when you reach the light it is not green.
Answer by shree840(260) About Me  (Show Source):
You can put this solution on YOUR website!
total time=25+5+55=85 sec
not green=25+5=30
prob =30/85=5/17 ans