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- Identify upstream or downstream.
- Apply the correct effective speed.
- Use distance/time relation.
Correct Answer: A
Correct Answer: A
Method / Topic: Boats and Streams
The answer uses the correct effective speed of the boat.
Short Explanation
Detailed Explanation
Correct Answer: A
Method / Topic: Boats and Streams
Let downstream and upstream speeds be 5x and 3x. Their average equals 16, so x and the stream speed equal 4 km/h.
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Learn + Solve: Shortcut, Trap & Fast Route Click to view shortcut, steps, and common mistake
Shortcut used, common trap, and the fastest solving route
- Identify upstream or downstream.
- Apply the correct effective speed.
- Use distance/time relation.
The downstream and upstream speeds of a boat are in the ratio 5:3. If its speed in still water is 16 km/h, what is the speed of the stream?
Explanation
Correct Answer: A
Method / Topic: Boats and Streams
The answer uses the correct effective speed of the boat.
Short Explanation
Detailed Explanation
Correct Answer: A
Method / Topic: Boats and Streams
Let downstream and upstream speeds be 5x and 3x. Their average equals 16, so x and the stream speed equal 4 km/h.
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