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Q: A sailor covers 2 km in the upstream in 1 hour and a distance of 1 km in the downstream in 10 minutes. Find the speed in still water.
  • A. 4 km./hr.
  • B. 2.5 km./hr.
  • C. 3 km./hr.
  • D. 4.5 km./hr.
Correct Answer: Option A -
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Explanations:

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