The distance between City J and City K was 680 km apart. A van travelled at an average speed of 92 km/h from City J to City K. At the same time, a car travelled at an average speed of 78 km/h from City K to City J. 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
= 92 + 78
= 170 km/h
Time taken for the van and the car to meet
= 680 ÷ 170
= 4 h
Difference in the speed between the van and the car
= 92 - 78
= 14 km/h
Distance that the van travelled further than the car
= 4 x 14
= 56 km
Answer(s): 56 km