Subject

    Quantitative Aptitude

    Topic

    Number

    if a2  =  12,  then  a4  =?a^2\;=\;12,\;then\;a^4\;=?

    ক)
    144
    খ)
    72
    গ)
    36
    ঘ)
    24

    Explanation

    a 4 = a 2 x a 2 = 12 x 12 = 144

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