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      Question

      A train moving at a speed of 25 m/s can cross a tunnel of

      length 550 metres in 40 seconds. Find the length of the train.
      A 410 m Correct Answer Incorrect Answer
      B 450 m Correct Answer Incorrect Answer
      C 312 m Correct Answer Incorrect Answer
      D 515 m Correct Answer Incorrect Answer

      Solution

      ATQ,

      Let the length of the train be 'x' metres.

      According to the question:

      Image

      550+x=1000

      Or, x=1000−550

      Or, x=450

      Therefore, the length of the train is 450 metres.

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