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A boat goes downstream at a speed of 20 km/h and upstream at 10 km/h. What is the speed of the boat in still water? (2022)

Practice Questions

1 question
Q1
A boat goes downstream at a speed of 20 km/h and upstream at 10 km/h. What is the speed of the boat in still water? (2022)
  1. 15 km/h
  2. 20 km/h
  3. 25 km/h
  4. 30 km/h

Questions & Step-by-step Solutions

1 item
Q
Q: A boat goes downstream at a speed of 20 km/h and upstream at 10 km/h. What is the speed of the boat in still water? (2022)
Solution: Speed in still water = (Downstream speed + Upstream speed) / 2 = (20 + 10) / 2 = 15 km/h.
Steps: 6

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