PROBLEM: A Tangled Tale

A problem from Lewis Carroll --

  • A man walked for 5 hours, first along a level road, then up a hill, and then he turned around and walked back to the starting point along the same path. He walks 4 mph on the level, 3 mph uphill, and 6 mph downhill. Find the distance he walked.


    • There is not enough information given to solve the problem.
    Hint?
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    Answer?
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