- A2 km/h
- B6 km/h
- C4 km/h
- D5 km/h
Step-by-Step Solution
. Try ✓ gives 1.92 h; gives about 0.73 h.)
Answer: C) 4 km/h
A motorboat with a still-water speed of 20 km/h goes 72 km upstream and then 72 km back. The upstream leg takes 1 h 30 min longer than the downstream leg. Find the speed of the stream.
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