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Q: A boat starting from point P goes downstream to point Q in 3 hours and return back from point Q to the point P in 4 hours. If the speed of the water is 3 km/h, find the speed of the boat in still water.
  • A. 20 km/h
  • B. 32 km/h
  • C. 12 km/h
  • D. 21 km/h
Correct Answer: Option D -
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Explanations:

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