Multiple Choice Questions on 35x2 46x 15 0 10y2 131y 13 0 ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

35x2 46x 15 0 10y2 131y 13 0 ........

Quantitative Aptitude ( CCS) Quadratic Equations
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    35x2-46x+15=0

    10y2+131y+13=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:

    35x2-46x+15=0
    35x2 – 25x- 21x+15=0
    5x(7x -5) – 3(7x -5)=0
    (7x-5) ( 5x-3)=0
    x= 5/7 , 3/5
    10y2+131y+13=0
    10y2 +y+ 130y +13=0
    y( 10y+1) + 13(10y+1)=0
    (10y+1) ( y+13)=0
    y= -1/10,- 13
    Hence x>y

    By: Amit Kumar
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