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Railways Sample Paper RRB (Group D) Sample Test Paper-4

  • question_answer
    \[If\frac{x}{y}=\frac{4}{5},\]Then The value of \[\left( \frac{4}{7}+\frac{2y-\,x}{2y+x} \right)\,\,is\]

    A)  \[\frac{3}{7}\]             

    B)  \[1\frac{1}{7}\]

    C)  1                    

    D)  2

    Correct Answer: C

    Solution :

    [c] \[\frac{4}{7}+\frac{\frac{2y}{y}-\frac{x}{y}}{\frac{2y}{y}+\frac{x}{y}}=\frac{4}{7}+\frac{2-\frac{4}{5}}{2+\frac{4}{5}}=\frac{4}{7}+\frac{6}{14}=1\]


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