Level:
Project ID:
2010018101
Source Problem:
Accepted:
0
Clonable:
1
Easy:
1
Andrea took part in a children's cycling race. The first part of the route led from the Lower Square to the Upper Square and Andrea completed it with an average speed of \(10\,\mathrm{km/h}\). Returning from the Upper Square to the Lower Square she rode the same route with an average speed of \(13\,\mathrm{km/h}\). We are interested in her average speed during the whole race. What type of average do we need to use?
Harmonic mean
Arithmetic mean
Geometric mean
Weighted arithmetic mean