Multiple Choice Questions on 40x2 13x 1 0 10y2 19y 6 0 ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

40x2 13x 1 0 10y2 19y 6 0 ........

Quantitative Aptitude ( CCS) Quadratic Equations
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    40x2-13x+1=0

    10y2+19y+6=0

    x<y

    Incorrect Answer

    x<=y

    Incorrect Answer

    x>y

    Correct Answer

    the relation cannot be determined

    Incorrect Answer
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    Explanation:

    40x2-13x+1=0
    40x2 -8x-5x+1=0
    8x(5x -1) -1(5x -1)=0
    (5x-1) ( 8x-1)=0
    x= 1/5 , 1/8
    10y2+19y+6=0
    10y2 +15y+4y -6=0
    5y( 2y+3) +2(2y+3)=0
    (2y=3) ( 5y+2)=0
    y= -3/2, -2/5
    x>y

    By: Amit Kumar
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