Traffic Light Problems
Interactive practice questions
Traffic lights showing green, red and yellow lights are set up on a race track. A race car approaching the lights is equally likely to see a green, red or yellow light.
This is because:
the three lights stay on for the same amount of time.
the race car driver is driving at a constant speed.
the lights are the same size.
A traffic light is green for $35$35 seconds, amber for $5$5 seconds and then red for $50$50 seconds. What is the probability that the next person at the traffic lights gets a:
On the island of Timbuktoo the probability that a set of traffic lights shows red, yellow or green is equally likely. Christa is travelling down a road where there are two sets of traffic lights.
A traffic light at a railway crossing has a chance of $0.3$0.3 of being yellow.
Three cars approach the light separately at different times throughout the day. What is the probability that each of the cars approaches a yellow light?