Question
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?
3 m

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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?