The distance between City Y and City Z was 840 km apart. A car travelled at an average speed of 85 km/h from City Y to City Z. At the same time, a bus travelled at an average speed of 83 km/h from City Z to City Y. How much further did the car travel than the bus when the car met the bus on the way?
Combined speed of the car and the bus
= 85 + 83
= 168 km/h
Time taken for the car and the bus to meet
= 840 ÷ 168
= 5 h
Difference in the speed between the car and the bus
= 85 - 83
= 2 km/h
Distance that the car travelled further than the bus
= 5 x 2
= 10 km
Answer(s): 10 km