- A4.5 km/h
- B6 km/h
- C3 km/h
- D1.5 km/h
Step-by-Step Solution
Downstream = 1.2 ÷ 0.2 = 6 km/h; upstream = 1.2 ÷ 0.4 = 3 km/h. Still water = 4.5 km/h.
Answer: A) 4.5 km/h
A swimmer covers 1.2 km downstream in 12 minutes and needs 24 minutes to swim back. What is her speed in still water?
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