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AFMC AFMC Solved Paper-2002

  • question_answer
    Solve the following problems. A train 120 m long takes 20 s to cross a platform of 360 m long. The speed of the train is :

    A)                  12 m/s                                

    B)                  24 m/s

    C)                  48 m/s                                

    D)                  96 m/s

    Correct Answer: B

    Solution :

                     Length of train \[=\text{12}0\,m\] Length of platform \[=\text{ 36}0\text{ }m\] Total distance \[=\left( \text{12}0+\text{36}0 \right)=480\,m\] Time taken to cover the distance\[=\text{2}0\,\text{sec}.~\]                 \[\because \text{Speed=}\frac{\text{Distance}}{\text{Time}}\] \[\frac{480}{2}=24\,m/s\]


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