Question
Mathematics Question on Statistics and Probability
A complete cycle of a traffic light takes 60 seconds. During each cycle the light is green for 25 sec, yellow for 5 sec and red for 30 sec. At a randomly chosen time, the probability that the light will not be green is
A
1/3
B
1/4
C
1/12
D
7/12
Answer
7/12
Explanation
Solution
The correct option is (D):7/12