49. The student has passed the half-way on a bicycle wi

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Uploaded: 10.08.2015
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49. The student has passed the half-way on a bicycle with a speed υ1 = 16 km / h. Further, half of the remaining time was driving at υ2 = 12 km / h, and then until the end of the path walked at a speed υ3 = 5 km / h. Determine the average speed of the student all the way.

Additional information

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)

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