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SSC Sample Paper SSC CGL - Sample Paper-11

  • question_answer
    A moving train passes a platform 50 m long in 14 s and a lamp-post in 10 s. The speed of the train is

    A) 24 km/h            

    B) 36 km/h

    C) 40 km/h            

    D) 45 km/h

    Correct Answer: D

    Solution :

    Suppose length of train \[=x\,m\] According to question,             \[\frac{x+50}{14}=\frac{x}{10}\] Or,        \[x=\frac{500}{4}=125\,m\] Therefore, speed\[=\frac{125}{10}\times \frac{18}{5}=45\,\text{km/h}\]


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