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      Question

      Ramesh covered one-fourth of the total journey at 30

      km/h and the rest at 45 km/h. If he took a total of 8 hours to complete the journey, how much distance did he travel at 45 km/h?
      A 200 km Correct Answer Incorrect Answer
      B 220 km Correct Answer Incorrect Answer
      C 235 km Correct Answer Incorrect Answer
      D 240 km Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ,

      Let the total distance be 4D km. ATQ: (D/30) + (3D/45) = 8 Or, (3D + 6D) ÷ 90 = 8 Or, (9D/90) = 8 So, D = 80 Required distance = 3 × 80 = 240 km

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