- A12 km/h
- B8 km/h
- C16 km/h
- D6 km/h
Step-by-Step Solution
and (twice the stream), so . Still water = 12 km/h. In short, boat = 3 × stream.
Answer: A) 12 km/h
If the stream flows at 4 km/h and a boat's upstream speed is half its downstream speed, what is the boat's speed in still water?
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