medium · GMAT Quant
A boat travels at 20 km/h in still water. It takes the same amount of time to travel 48 km upstream as it does to travel 72 km downstream.
What is the speed of the current?
- 6 km/h
- 4 km/h
- 8 km/h
- 2 km/h
- 5 km/h
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