A) \[100\,\,m\]
B) \[110\,\,m\]
C) \[220\,\,m\]
D) \[330\,\,m\]
Correct Answer: D
Solution :
Let the length of the train be \[x\]metres. When a train crosses a platform, the distance covered by it = sum of the lengths of the platform and the train, According to the question, \[\frac{x+110}{40}=\frac{x}{30}\Rightarrow \frac{x+110}{4}=\frac{x}{3}\] \[\Rightarrow \] \[4x=4x+330\] \[\Rightarrow \] \[x=330\]metreYou need to login to perform this action.
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