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      Question

      A car travels at a uniform speed of 45 km/h for 210 km

      and then travels for 420 km at a uniform speed of 70 km/h. What is the average speed of the car during the entire journey?
      A 63(1/16) km/h Correct Answer Incorrect Answer
      B 59(5/16) km/h Correct Answer Incorrect Answer
      C 63(5/16) km/h Correct Answer Incorrect Answer
      D 59(1/16) km/h Correct Answer Incorrect Answer

      Solution

      The correct answer is D

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