You have to give the length of the train A in order to find length of train B.
Cause by that way we can calculate the speed of it.
Or give the Speed of it
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You have to give the length of the train A in order to find length of train B.
Cause by that way we can calculate the speed of it.
Or give the Speed of it
Bro first find the length of train A by relativespeed and speed fourma