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13-02-2024
Mathematics

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15. Partiendo de una estación un tren viaja al norte a la velocidad de 110 Km/h dos horas después, otro tren parte de la misma estación hacia el sur a 90 Km/h. ¿Cuántas horas transcurrieron antes de que se encuentren separados por una distancia de 420 Km? a) 5 h d) 8 b) 3 e) N.A. c) 7

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