Multiple Choice Questions on I a2 13a 42 0 II b2 15b 56 0 to solve both the equations to find the values of a and b ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

I a2 13a 42 0 II b2 15b 56 0 to solve both the equations to find the values of a and b ........

Quantitative Aptitude ( CCS) Quadratic Equations
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    I. a2 - 13a + 42 = 0,

    II. b2 - 15b + 56 = 0 to solve both the equations to find the values of a and b?

    If a > b

    Incorrect Answer

    If a ≥ b

    Incorrect Answer

    If a < b

    Incorrect Answer

    If a ≤ b

    Correct Answer
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    Explanation:

    I. a2 - 13a + 42 = 0
    =>(a - 6)(a - 7) = 0 => a = 6, 7
    II. b2 - 15b + 56 = 0
    =>(b - 7)(b - 8) = 0 => b = 7, 8
    =>a ≤ b

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