Multiple Choice Questions on I 8x2 10x 3 0 II 3y2 70y 40 0 ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

I 8x2 10x 3 0 II 3y2 70y 40 0 ........

Quantitative Aptitude ( CCS) Quadratic Equations
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    I. 8x2 + 10x + 3 = 0,

    II. 3y2 + 70y + 40 = 0

    x > y

    Correct Answer

    x < y

    Incorrect Answer

    x ≥ y

    Incorrect Answer

    x ≤ y

    Incorrect Answer
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    Explanation:

    8x2 + 10x + 3 = 0
    8x2 + 4x + 6x + 3 = 0
    So x = -3/4, -1/2
    3y2 + 70y + 40 = 0
    3y2 + 30y + 40y + 40 = 0
    So y = -10, -4/3
    Put all values on number line and analyze the relationship
    -10 … -4/3 …. -3/4 …. -1/2

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