Multiple Choice Questions on I x2 ndash 2x ndash 15 0 II y2 22 122 ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

I x2 ndash 2x ndash 15 0 II y2 22 122 ........

Quantitative Aptitude ( CCS) Quadratic Equations
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    I. x2 – 2x – 15 = 0

    II. y2 + 22 = 122

    x < y

    Incorrect Answer

    x ≥ y

    Incorrect Answer

    x ≤ y

    Incorrect Answer

    x = y or relationship cannot be determined

    Correct Answer
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    Explanation:

    x2 – 2x – 15 = 0
    x2 – 5x + 3x – 15 = 0
    So x = 5, -3
    y2 + 22 = 122
    y2 = 100
    y = + 10, -10
    Put all values on number line and analyze the relationship
    -10….-3….5….10

    By: Amit Kumar
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