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UI A 676 mile trip via ship and train takes 20 hours. If the ship averages 32 mph and the train averages 50 mph, how long did it take to travel on the ship? . Two cities are 160 km apart. If the average speed of a train were increased by 6 km per hour, the train would arrive 6 hours earlier than the scheduled time. What was the train's scheduled average speed?​