Subject

    Quantitative Aptitude

    Topic

    Number

    If a,b and c are odd integers, which of the following expressions must be an even integer?

    ক)
    ab+ be+ca
    খ)
    a(b +c-1)
    গ)
    a2- b2+c2
    ঘ)
    3(ac- bc)

    Explanation

    odd-odd=even

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