Q: 1 (IAS/2002)

A complete cycle of a traffic light takes 60 seconds. During each cycle the light is green for 25 second, yellow for 5 second and red for 30 second. At a randomly chosen time, the probability that the light will not be green is
stats: 
0,216,216,40,56,120,216

User login

For Search , Advanced Analysis, Customization , Test and for all other features Login/Sign In .