SOLUTION: A train goes from New Orleans to Boston at 40 mph. On the way back it returns with a speed of 80 miles per hour. If it takes less time to return, what is it's average speed?
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Question 980578: A train goes from New Orleans to Boston at 40 mph. On the way back it returns with a speed of 80 miles per hour. If it takes less time to return, what is it's average speed? Answer by Alan3354(69443) (Show Source):
