medium · GMAT Quant
A delivery truck travels from Warehouse A to Warehouse B at a constant speed of 60 km/h and returns along the same route at 40 km/h.
What is the average speed for the entire round trip?
- 45 km/h
- 50 km/h
- 55 km/h
- 52 km/h
- 48 km/h
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