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      Question

      Rajesh drove at the speed 100 km/hr from his home to a

      resort. While returning he got struck in traffic and took 6 more hrs; he could drive only at the speed of 40 km/hr. How many kilometer did he drive each way?
      A 450 km Correct Answer Incorrect Answer
      B 300 km Correct Answer Incorrect Answer
      C 320 km Correct Answer Incorrect Answer
      D 400 km Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Let the distance be x km. Then, x/40 ร— x/100 = 6 5x โ€“ 2x = 6 ร— 200 3x = 1200 x = 400 km

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