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Q:

A man can row at 7 km/hour in still water. He finds that it takes twice the time to row upstream than the time to row downstream. The speed of the stream is

  • 1
    2.3 km/hour
  • 2
    4 km/hour
  • 3
    2.6 km/hour
  • 4
    7 km/hour
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Answer : 3. "2.6 km/hour "

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