- A3 km/h
- B2 km/h
- C4 km/h
- D9 km/h
Step-by-Step Solution
Let and . From the second, ; substituting gives ⇒ . So and the stream = 3 km/h.
Answer: A) 3 km/h
A boat goes 18 km upstream and 36 km downstream in 6 hours. It also goes 24 km upstream and 24 km downstream in 6 hours. What is the speed of the stream?
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