Question
The distance between City N and City P was 960 km apart. A lorry travelled at an average speed of 81 km/h from City N to City P. At the same time, a van travelled at an average speed of 79 km/h from City P to City N. How much further did the lorry travel than the van when the lorry met the van on the way?
3 m

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The distance between City N and City P was 960 km apart. A lorry travelled at an average speed of 81 km/h from City N to City P. At the same time, a van travelled at an average speed of 79 km/h from City P to City N. How much further did the lorry travel than the van when the lorry met the van on the way?