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482

Q:

Speed of boat in still water is 9 km/hr. Stream speed initially is 2 km/hr but it increases by 3 km/hr after every hour. Find the time after which boat will come back to the position where it started.(in hour)

  • 1
    5(5/8)
  • 2
    4(7/8)
  • 3
    5(3/8)
  • 4
    4(3/4)
  • 5
    None of these
  • Show Answer
  • Workspace

Answer : 1. "5(5/8)"

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