SOLUTION: A sportsman can run 510 feet down a sand dune in 30 seconds. He can run 165 feet up the sand dune in 55 seconds. How fast can the sportsman run in the sand on level ground?

Question 1053153: A sportsman can run 510 feet down a sand dune in 30 seconds. He can run 165 feet up the sand dune in 55 seconds. How fast can the sportsman run in the sand on level ground?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
A sportsman can run 510 feet down a sand dune in 30 seconds. He can run 165 feet up the sand dune in 55 seconds. How fast can the sportsman run in the sand on level ground?
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No way to know.
There's no reason to assume running on level ground is the average of up and down the hill.

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