SSC Sample Paper SSC CGL - Sample Paper-17

  • question_answer
    Two trains are running in opposite directions with speeds 45 and 55 km an hour. If the trains be of lengths 132m and 118 m respectively, they will cross each other in

    A) 10 s                 

    B) 8 s       

    C) 12 s                             

    D) 14 s

    Correct Answer: A

    Solution :

    Relative speed\[=45+55=90\,\,\text{km/h}\] \[=90\times \frac{5}{18}=25\,\text{m/s}\] Distance to be covered \[=132+118=250\,m\] \[\therefore \] Time taken to cross each other \[=\frac{250}{25}=10\,s\]      


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