- A9 km/h
- B6 km/h
- C3 km/h
- D12 km/h
Step-by-Step Solution
Let and for the upstream and downstream speeds: . Solving, km/h. Stream km/h.
Answer: C) 3 km/h
A ferry keeps the same speed in still water on both trips shown, and the river flows at a steady speed. Find the speed of the stream.
Class 10Work Rates with Two UnknownsAlgebra — Systems of Equations
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