- A8 km/h
- B6 km/h
- C10 km/h
- D12 km/h
Step-by-Step Solution
Same time ⇒ D : U = 30 : 18 = 5 : 3. With D − U = 4, U = 6, D = 10, so still water = 8 km/h.
Answer: A) 8 km/h
Vimal can row 30 km downstream in the same time that he rows 18 km upstream. If the stream flows at 2 km/h, what is his speed in still water?
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