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A river's current is 5 km/h. If a boat travels downstream at 15 km/h, what is the effective speed of the boat relative to the riverbank?

Practice Questions

1 question
Q1
A river's current is 5 km/h. If a boat travels downstream at 15 km/h, what is the effective speed of the boat relative to the riverbank?
  1. 10 km/h
  2. 20 km/h
  3. 15 km/h
  4. 5 km/h

Questions & Step-by-step Solutions

1 item
Q
Q: A river's current is 5 km/h. If a boat travels downstream at 15 km/h, what is the effective speed of the boat relative to the riverbank?
Solution: Effective speed downstream = Speed of boat + Speed of river = 15 km/h + 5 km/h = 20 km/h.
Steps: 0

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