Mathematics, 28.03.2020 00:33, simplekaryme0

Two trains on opposite tracks leave the same station at the same time. One train travels at an average speed of 80 km/hr and the other travels at an average speed of 70 km/hr. How long after they leave the station will they be 50 km apart?

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Two trains on opposite tracks leave the same station at the same time. One train travels at an avera...