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SSC Sample Paper SSC CHSL (10+2) Sample Test Paper-21

  • question_answer
    If two trains A and B start at the same time in opposite direction from two stations and arrive at their destination 4 hours and 9 hours after having meet respectively. What is the ratio of speeds of train A to that of train B?

    A)  \[4:9\]                          

    B)  \[9:4\]

    C)  \[2:3\]                          

    D)  \[3:2\]

    Correct Answer: D

    Solution :

     \[\frac{Speed\,\,of\,\,A}{Speed\,\,of\,\,B}=\sqrt{\frac{Time\,of\,B}{Time\,of\,A}}\] \[=\,\,\sqrt{\frac{9}{4}}=\frac{3}{2},\]  \[A:B\] (Speed) \[=\,\underline{\mathbf{3:2}}\]


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