Multiple Choice Questions on I 4x2 9x ndash 9 0 II 4y2 ndash 19y 12 0 ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

I 4x2 9x ndash 9 0 II 4y2 ndash 19y 12 0 ........

Quantitative Aptitude ( CCS) Quadratic Equations
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    I. 4x2 + 9x – 9 = 0

    II. 4y2 – 19y + 12 = 0

    x > y

    Incorrect Answer

    x < y

    Incorrect Answer

    x ≥ y

    Incorrect Answer

    x ≤ y

    Correct Answer
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    Explanation:

    4x2 + 9x – 9 = 0
    4x2 + 12x – 3x – 9 = 0
    Gives x = -3, 3/4
    4y2 – 19y + 12 = 0
    4y2 – 16y – 3y + 12 = 0
    Gives y = 3/4, 4
    Put all values on number line and analyze the relationship
    -3…….. 3/4….. 4

    By: Amit Kumar
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