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SSC Sample Paper SSC CGL - Sample Paper-30

  • question_answer
    X is twice as old as Y 3 yr ago, when X was as old as Y today. If the difference between their ages at present is 3 yr, how old is X at present?

    A) 18 yr                

    B) 12 yr

    C) 9 yr                              

    D) 8 yr

    Correct Answer: B

    Solution :

    Let present age of \[X=x\,yr\] and present age of \[Y=y\,yr\] By given condition,             \[x-y=3\]                                   ?(i) \[\Rightarrow \]   \[x=2(y-3)\]                               ?(ii) On solving Eqs. (i) and (ii), we get             \[y=9\,yr\] and \[x=12\,yr\]


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