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Railways Sample Paper RRBs Assistant Loco Pilot and Technician CBT STAGE-I Sample Paper-16

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

    A)  \[\frac{3}{7}\]             

    B)  1    

    C)  \[1\frac{1}{7}\]

    D)  2

    Correct Answer: B

    Solution :

    \[\because \frac{x}{y}=\frac{4}{5}\] \[\therefore \]\[\frac{4}{7}+\frac{2-x/y}{2+x/y}=\frac{4}{7}+\frac{2-4/5}{2+4/5}\] \[=\frac{4}{7}+\frac{6}{5}\times \frac{5}{14}=\frac{4}{7}+\frac{3}{7}=1\]


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