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Question: a train travels from city a to city b and...

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A train travels from city A to city B and then to city C. The distance from A to B is 65 miles and the distance from B to C is 150 miles. The average speed from A to B was 65 miles per hour, and the average speed from B to C was 50 mph. What was the average speed from A to C (that is for the entire trip) in miles per hour?

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