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      Question

      A train 120 m long passes a pole in 10 seconds. Find its

      speed in km/h.
      A 49.2 km/h Correct Answer Incorrect Answer
      B 73.2 km/h Correct Answer Incorrect Answer
      C 23.5 km/h Correct Answer Incorrect Answer
      D 43.2 km/h Correct Answer Incorrect Answer

      Solution

      Speed = Distance / Time = 120 / 10 = 12 m/s Convert m/s to km/h: multiply by 18/5 12 Γ— 18/5 = 216/5 = 43.2 km/h

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