Question
The distance between City N and City P was 640 km apart. A bus travelled at an average speed of 85 km/h from City N to City P. At the same time, a van travelled at an average speed of 75 km/h from City P to City N. 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 N and City P was 640 km apart. A bus travelled at an average speed of 85 km/h from City N to City P. At the same time, a van travelled at an average speed of 75 km/h from City P to City N. How much further did the bus travel than the van when the bus met the van on the way?