Subject

    Quantitative Aptitude

    Topic

    Number

    107 x 107 + 93 x 93 =?

    ক)
    19578
    খ)
    19418
    গ)
    20098
    ঘ)
    21908

    Explanation

    107 x 107 + 93 x 93 = (107)2 + (93)2 = (100 + 7)2 + (100 - 7)2 = 2 x [(100)2 + 72] = 20098

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