A bus arrives every 20 minutes to a bus stop, beginning at 6
A bus arrives every 20 minutes to a bus stop, beginning at 6-40 AM and continuing till 8-40 AM. A passenger, not knowing the schedule, randomly arrives between 7 AM and 7-30 AM. What is the probability that he weiits for more than 5 minutes for the bus ?
A1/6
B1/4
C3/4
D5/6
