The distance between City D and City E was 770 km apart. A van travelled at an average speed of 81 km/h from City D to City E. At the same time, a car travelled at an average speed of 73 km/h from City E to City D. 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
= 81 + 73
= 154 km/h
Time taken for the van and the car to meet
= 770 ÷ 154
= 5 h
Difference in the speed between the van and the car
= 81 - 73
= 8 km/h
Distance that the van travelled further than the car
= 5 x 8
= 40 km
Answer(s): 40 km