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Just when Satabdhi Express started from the platform, Mr. Alonso, a motorcyclist also started on a road parallel to the railway track. He started from the rear end of the train, with a speed greater than that of the train. As soon as he reached the front end of the train, he immediately turned back towards the rear end of the train and by the time he reached the rear end he found that the train had travelled a distance equal to its own length and he had travelled a total distance of 400*(1+ √2)m. Find the length (in m) of the train. (Assume that the train and Alonso travelled with their respective uniform speeds throughout).
(A) 200
(C) 400√2
(B) 400 (1+ √2)
(D) 400
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(A) 200
(C) 400√2
(B) 400 (1+ √2)
(D) 400
Posted from my mobile device
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