The distance between City R and City S was 990 km apart. A van travelled at an average speed of 85 km/h from City R to City S. At the same time, a bus travelled at an average speed of 80 km/h from City S to City R. How much further did the van travel than the bus when the van met the bus on the way?
Combined speed of the van and the bus
= 85 + 80
= 165 km/h
Time taken for the van and the bus to meet
= 990 ÷ 165
= 6 h
Difference in the speed between the van and the bus
= 85 - 80
= 5 km/h
Distance that the van travelled further than the bus
= 6 x 5
= 30 km
Answer(s): 30 km