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- Subject
- Boats and Streamsmathematics-mcqs › boats-and-streams
- Published
- 22 Sept 2019
- Last updated
- 28 May 2026
Explanation
The boat's speed upstream (against the current) is 25 km/h, and downstream (with the current) is 35 km/h. The current's speed is half the difference between these two speeds: (35 - 25) / 2 = 5 km/h.
More Boats and Streams MCQs
Practice related questions from the same subject.
- 1.A steamboat travels downstream from one harbor to another in 4 hours and returns upstream over the same distance in 5 hours. If the current's speed is 2 km/h, what is the distance between the two harbors?
- 2.A motorboat's speed is in the ratio 36:5 compared to the speed of the water current. If the boat takes 5 hours and 10 minutes to travel downstream, how long will it take to return upstream?
- 3.A boat travels at a speed of 5 km/h in still water. It covers 30 km upstream and then returns downstream to the starting point in a total of 4 hours and 30 minutes. What is the speed of the current?
- 4.A boat travels 30 km downstream in 2.5 hours and returns the same distance upstream in 3.75 hours. What is the boat's speed in still water?
- 5.A boat travels 24 km downstream in 10 hours, but takes 2 hours longer to cover the same distance upstream. What is the boat's speed in still water?
- 6.A boat travels 24 kilometers downstream in 4 hours, while it takes 6 hours to cover the same distance upstream. What is the speed of the boat in still water?
- 7.A person rows at a speed of 9 km/h in still water. He takes 4.5 hours to travel from point A to point B and back again. If the current flows at 1 km/h, what is the distance between points A and B?
- 8.A man rows a boat at 15 km/h in still water. If the river current flows at 3 km/h, how long will it take him to travel 60 meters downstream?
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