Multiple Choice Questions on 3x 2y 3x 2y 5 3 x 2 y 2 x 2 y 2 find the value of the equation ........ for CDS Exam Preparation

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Multiple Choice Questions

3x 2y 3x 2y 5 3 x 2 y 2 x 2 y 2 find the value of the equation ........

Quantitative Aptitude (CDS) Simplification
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    (3x+2y)/(3x-2y) =5/3 , x^2 +y^2  /x^2 -y^2 find the value of the equation?

    71/3

    Incorrect Answer

    73/55
     

    Correct Answer

    73/11

    Incorrect Answer


    71/55

    Incorrect Answer
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    Explanation:

    (3x+2y)3  =(3x-2y)5
    9x+6y =15x -10y
    9x/y +6 =15x/y -10
    6x/y =16
    x/y =8/3
    =x^2 +y^2 /x^2 -y^2
    =x^2  /y^2  +1  /  x^2  /y^2 -1
    =(8/3)^2   +1  /(8/3)^2  -1
    =(64+9)/(64-9)
    =73/55

    By: bhavesh kumar singh
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