Answer-A train takes 57 seconds to cross the 204 m long bridge. If the same train takes 23 seconds to cross...

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Let the length of the train be x m. Length of the platform  204 m As we know, Speed  Distancetime x20457  x23 23x  4692  57x 57x-23x  4692 34x  4692 x  469234 x  138 Length of the train is 138 m.

A train takes 57 seconds to cross the 204 m long bridge. If the same train takes 23 seconds to cross a signal board, tell the length of the train. (In meters)

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