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      Question

      A boat covers (x – 20) km upstream in the same time it

      covers (2x – 95) km downstream. If the speed of the boat and stream are 15 km/h and 3 km/h respectively, find the value of ‘x’.
      A 125 km Correct Answer Incorrect Answer
      B 130 km Correct Answer Incorrect Answer
      C 155 km Correct Answer Incorrect Answer
      D 120 km Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ,

      (x – 20)/(15 – 3) = (2x – 95)/(15 + 3)

      (x – 20)/12 = (2x – 95)/18

      18x – 360 = 24x – 1140

      6x = 780 → x = 130

      So, the value of ‘x’ is 130 km.

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