The input is two speeds (for the trip and return trip) and output is average speed. Assume units are consistent, say miles per hour (MPH).
So, for example, a train travels at 60 MPH on a trip and at 100 MPH on return trip. What was its average speed for the entire trip?
harmmean(x) does exist
May be NOt in cody...
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The Answer to Life, the Universe, and Everything
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Solution 860217
bad test suite case.