posted by Leslie .
the distance between town A and town B was 210km. At 9:20pm a bus sets off from town A to town B and a car left from town B to town A. The average speed of the bus was 60km/h and the average speed of the car was 80km/h.
a)Calculate the time at which the car passed the bus.
b)How far had the car traveled when it passed the bus?