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SSC Sample Paper SSC CHSL (10+2) Sample Test Paper-8

  • question_answer
    If (3x-y): (x+ 5y) = 5: 7. then the value of (x + y): (x - y) is

    A)  2: 3                             

    B)  3: 2

    C)  3: 1                             

    D)  1: 3

    Correct Answer: C

    Solution :

     \[\frac{3x-y}{x+5y}=\frac{5}{7}\] \[\Rightarrow \]\[21\,x-7y=5x+25y\] \[\Rightarrow \]\[21\,x-5x=25y+7y\] \[\Rightarrow \]\[16x=32y\] \[\Rightarrow \]\[\frac{x}{y}=\frac{32}{16}=\frac{2}{1}\] \[\Rightarrow \] \[\frac{x+y}{x-y}=\frac{2+1}{2-1}=3:1\]


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