Multiple Choice Questions on 35m2 18m 81 0 10n2 184n 114 0 ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

35m2 18m 81 0 10n2 184n 114 0 ........

Quantitative Aptitude ( CCS) Quadratic Equations
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    35m2-18m-81=0

    10n2+184n-114=0

    m<n

    Incorrect Answer

    m<=n

    Incorrect Answer

    m>n

    Correct Answer

    m>=n

    Incorrect Answer
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    Explanation:

    35m2-18m-81=0
    35m2 – 45m+ 63m-81=0
    5m(7m -9) + 9(7m -9)=0
    (7m-9) ( 5m+9)=0
    m= 9/7 , -9/5
    10n2+184n-114=0
    10n2 -6n+ 190n -114=0
    n( 10n-6) + 19(10n-6)=0
    (10n-6) ( n+19)=0
    n= 6/10,- 19
    Hence m>n

    By: Amit Kumar
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