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Q: A sailor goes 6 km upstream in 2 hours and 1.5 km downstream in 7.5 minutes. How much time (in hours) will it take to travel 30 km in still water?
  • A. 3.5
  • B. 2.5
  • C. 3.0
  • D. 4.0
Correct Answer: Option D -
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Explanations:

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