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      Question

      If the length of a train were halved, it would take 8

      seconds to pass a pole. Given that the train's speed is 25 m/sec, determine the time required for the train to completely cross a platform of length 400 meters.
      A 10 secs Correct Answer Incorrect Answer
      B 20 secs Correct Answer Incorrect Answer
      C 32 secs Correct Answer Incorrect Answer
      D 25 secs Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ; Length of the train = 2 Γ— 8 Γ— 25 = 400 meters Time required = (400 + 400) / 25 = 32 seconds

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