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      Question

      A fast-moving train at 55 m/s crosses a lamp post in 14

      seconds. How long will it take for the train to completely pass through a 900-metre-long railway station?(Calculate the approximate time)
      A 30 secs Correct Answer Incorrect Answer
      B 90 secs Correct Answer Incorrect Answer
      C 72 secs Correct Answer Incorrect Answer
      D 43 secs Correct Answer Incorrect Answer

      Solution

      ATQ,

      Length of the train = 14 Γ— 55 = 770 metres

      Time taken to cross the station = (770 + 900)/55 = 1670/55 = 30.36 seconds or 30 secs

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