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Thread: A fun Questions about trains
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[quote=GUEST12982,432362]Train A leaves from Shanghai to Nanjing at 7am, at a speed of 100 km/h on one track. Train B leaves Nanjing to Shanghai also at 7 am, at a speed of 250 km/h on parallel track. Now the question: when they pass/cross each other, somewhere along the line, which one will be closer to Shanghai?[/quote]
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