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      Question

      A train 240 metres long crosses a platform 360 metres

      long in 30 seconds. Find the speed of the train in km/h.
      A 72 km/h Correct Answer Incorrect Answer
      B 47 km/h Correct Answer Incorrect Answer
      C 58 km/h Correct Answer Incorrect Answer
      D 99 km/h Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Total distance = 240 + 360 = 600 metres Speed = 600/30 = 20 m/s Convert into km/h: 20 × 18/5 = 72 km/h Hence, the correct answer is 72 km/h.

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