Multiple Choice Questions on I 35x2 16x 3 0 II 10y2 136y 56 0 ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

I 35x2 16x 3 0 II 10y2 136y 56 0 ........

Quantitative Aptitude ( CCS) Quadratic Equations
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    I. 35x2+16x-3=0

    II. 10y2+136y-56=0

    x ≥ y

    Incorrect Answer

    x < y

    Incorrect Answer

    x ≤ y

    Incorrect Answer

    x = y or Cannot be determined

    Correct Answer
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    Explanation:

    35x2+16x-3=0
    35x2 -5x+ 21x-3=0
    5x(7x -1) + 3(7x -1)=0
    (7x-1) ( 5x+3)=0
    x= 1/7 , -3/5
    10y2+136y-56=0
    10y2 -4y+ 140y -56=0
    y( 10y-4) + 14(10y-4)=0
    (10y-4) ( y+14)=0
    y= 4/10,- 14
    Hence the relation cannot be determined

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