SSC Sample Paper SSC CGL - Sample Paper-13

  • question_answer
    Two trains travel in the same direction at 50 km/h and 32 km/h respectively. A man in the slower train observes that 15s elpse before the faster train completely passes him. What is the length of the faster train?

    A) 75 m    

    B) 125 m

    C) 150 m              

    D) 625 m

    Correct Answer: A

    Solution :

    Let x is the length of fastest train Since,    \[\text{time=}\frac{\text{distance}}{\text{speed}}\] \[\therefore \]      \[=\frac{15}{3600}=\frac{x}{50-32}\] \[\Rightarrow \]   \[x=\frac{15\times 18}{3600}\] \[\Rightarrow \]   \[x=\frac{3}{40}\,km=\frac{3}{40}\times 1000=75\,m\] 

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