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SSC Sample Paper SSC CHSL (10+2) Sample Test Paper-5

  • question_answer
    A train passes a platform \[110\,\,m\]long in \[40\,\,\operatorname{seconds}\]and a boy standing on the platform in\[30\,\,\operatorname{seconds}\]. The length of the train is

    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,             \[\frac{x+110}{40}=\frac{x}{30}\Rightarrow \frac{x+110}{4}=\frac{x}{3}\] \[\Rightarrow \]   \[4x=4x+330\] \[\Rightarrow \]   \[x=330\]metre


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