Question
The distance between City H and City J was 640 km apart. A bus travelled at an average speed of 90 km/h from City H to City J. At the same time, a van travelled at an average speed of 70 km/h from City J to City H. How much further did the bus travel than the van when the bus met the van on the way?
3 m

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The distance between City H and City J was 640 km apart. A bus travelled at an average speed of 90 km/h from City H to City J. At the same time, a van travelled at an average speed of 70 km/h from City J to City H. How much further did the bus travel than the van when the bus met the van on the way?