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      Question

      A boat covers a distance of 270 km downstream in 6 hours.

      If the boat's speed in upstream direction is one-third of its downstream speed, calculate the time required to travel 180 km upstream.
      A 12 hrs Correct Answer Incorrect Answer
      B 18 hrs Correct Answer Incorrect Answer
      C 13 hrs Correct Answer Incorrect Answer
      D 10 hrs Correct Answer Incorrect Answer

      Solution

      ATQ,

      Downstream speed of the boat = 270 / 6 = 45 km/h

      Therefore, upstream speed of the boat = 45 / 3 = 15 km/h

      Required time taken = 180 / 15 = 12 hours

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