The distance between City W and City X was 860 km apart. A van travelled at an average speed of 100 km/h from City W to City X. At the same time, a car travelled at an average speed of 72 km/h from City X to City W. How much further did the van travel than the car when the van met the car on the way?
Combined speed of the van and the car
= 100 + 72
= 172 km/h
Time taken for the van and the car to meet
= 860 ÷ 172
= 5 h
Difference in the speed between the van and the car
= 100 - 72
= 28 km/h
Distance that the van travelled further than the car
= 5 x 28
= 140 km
Answer(s): 140 km