The distance between City X and City Y was 870 km apart. A bus travelled at an average speed of 97 km/h from City X to City Y. At the same time, a car travelled at an average speed of 77 km/h from City Y to City X. 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
= 97 + 77
= 174 km/h
Time taken for the bus and the car to meet
= 870 ÷ 174
= 5 h
Difference in the speed between the bus and the car
= 97 - 77
= 20 km/h
Distance that the bus travelled further than the car
= 5 x 20
= 100 km
Answer(s): 100 km