Atrain can either be early, on time or late. the probability that the train is early is 0.2 the probability that the train is on time is 0.5 work out the probability that the train is late.

Marion has a bicycle that she is planning to take for a ride. the rim of the rear wheel lies 41 cm from the center of the wheel. the tire itself has a thickness of 3 cm. in order for marion to ride her bicycle 96,712 cm approximately how many rotations will the rear wheel make?