Question:
A boat covers 24 km downstream in 2 hours and 12 km upstream in 2 hours. Find the speed of the boat in still water.
A boat covers 24 km downstream in 2 hours and 12 km upstream in 2 hours. Find the speed of the boat in still water.
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Set up two simple equations for boat speed and stream speed from the downstream and upstream speeds, then eliminate one variable by adding them.
Updated On: Jul 8, 2026
- 9 km/h
- 8 km/h
- 7.5 km/h
- 10 km/h
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The Correct Option is A
Solution and Explanation
Downstream speed \(=\frac{24}{2}=12\) km/h; upstream speed \(=\frac{12}{2}=6\) km/h. Speed in still water \(=\frac{12+6}{2}=9\) km/h. Correct option: 9 km/h.
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