A and B trains leave 1050km apart from each other at the same time. A runs 80km per hour. After 2.8 hours, when the two trains are far away from each other, B runs now A and B trains leave 1050km apart at the same time. A trains 80km per hour. After 2.8 hours, the two trains are three fifths of the distance. How many kilometers per hour does a train travel?

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