The distance between City J and City K was 990 km apart. A bus travelled at an average speed of 84 km/h from City J to City K. At the same time, a sports car travelled at an average speed of 81 km/h from City K to City J. How much further did the bus travel than the sports car when the bus met the sports car on the way?
Combined speed of the bus and the sports car
= 84 + 81
= 165 km/h
Time taken for the bus and the sports car to meet
= 990 ÷ 165
= 6 h
Difference in the speed between the bus and the sports car
= 84 - 81
= 3 km/h
Distance that the bus travelled further than the sports car
= 6 x 3
= 18 km
Answer(s): 18 km