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      Question

      770 metres long train crosses a man who is moving in the

      same direction with a certain speed, in 35 seconds. If the same train can cross a tree in 22 seconds with the same speed, then find the speed of the man.
      A 10 m/sec Correct Answer Incorrect Answer
      B 12 m/sec Correct Answer Incorrect Answer
      C 13 m/sec Correct Answer Incorrect Answer
      D 11 m/sec Correct Answer Incorrect Answer

      Solution

      Speed of train = 770/22 = 35 m/sec Let the speed of the man be ‘s’ m/sec Relative speed of the train = (35 – s) m/sec According to the question, (35 – s) = 770/35 Or, s = 35 – 22 = 13 Therefore, speed of the man = 13 m/sec

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