The distance between City Z and City A was 820 km apart. A bus travelled at an average speed of 86 km/h from City Z to City A. At the same time, a car travelled at an average speed of 78 km/h from City A to City Z. How much further did the bus travel than the car when the bus met the car on the way?
Combined speed of the bus and the car
= 86 + 78
= 164 km/h
Time taken for the bus and the car to meet
= 820 ÷ 164
= 5 h
Difference in the speed between the bus and the car
= 86 - 78
= 8 km/h
Distance that the bus travelled further than the car
= 5 x 8
= 40 km
Answer(s): 40 km