Multiple Choice Questions on I 20x2 ndash 31x 12 0 II 4y2 5y ndash 6 0 ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

I 20x2 ndash 31x 12 0 II 4y2 5y ndash 6 0 ........

Quantitative Aptitude ( CCS) Quadratic Equations
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    I. 20x2 – 31x + 12 = 0

    II. 4y2 + 5y – 6 = 0

    x > y

    Incorrect Answer

    x < y

    Incorrect Answer

    x ≥ y

    Correct Answer

    x ≤ y

    Incorrect Answer
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    Explanation:

    20x2 – 31x + 12 = 0
    20x2 – 16x – 15x + 12 = 0
    Gives x = 3/4, 4/5
    4y2 + 5y – 6 = 0
    4y2 + 5y – 6 = 0
    Gives y = -2, 3/4
    Put all values on number line and analyze the relationship
    -2…. 3/4… 4/5

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