The distance between City H and City J was 620 km apart. A car travelled at an average speed of 81 km/h from City H to City J. At the same time, a van travelled at an average speed of 74 km/h from City J to City H. How much further did the car travel than the van when the car met the van on the way?
Combined speed of the car and the van
= 81 + 74
= 155 km/h
Time taken for the car and the van to meet
= 620 ÷ 155
= 4 h
Difference in the speed between the car and the van
= 81 - 74
= 7 km/h
Distance that the car travelled further than the van
= 4 x 7
= 28 km
Answer(s): 28 km