Question
The distance between City Q and City R was 640 km apart. A convertible travelled at an average speed of 84 km/h from City Q to City R. At the same time, a bus travelled at an average speed of 76 km/h from City R to City Q. How much further did the convertible travel than the bus when the convertible met the bus on the way?
3 m

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The distance between City Q and City R was 640 km apart. A convertible travelled at an average speed of 84 km/h from City Q to City R. At the same time, a bus travelled at an average speed of 76 km/h from City R to City Q. How much further did the convertible travel than the bus when the convertible met the bus on the way?