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      Question

      A boat can travel 60km downstream in 4 hours. If the

      speed of the boat in still water is 13 km/h, then in what time will it cover 30 km upstream?
      A 1 Correct Answer Incorrect Answer
      B 2 Correct Answer Incorrect Answer
      C 3 Correct Answer Incorrect Answer
      D 4 Correct Answer Incorrect Answer

      Solution

      Downstream speed = 60 ├╖ 4 = 15 km/h Speed of stream = 15 тИТ 13 = 2 km/h Upstream speed = 13 тИТ 2 = 11 km/h Time for 30 km upstream = 30 ├╖ 11 = 2(8/11)

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