Subject

    Quantitative Aptitude

    Topic

    Average

    If the average of the four numbers M, 2M+3, 3M-5 and 5M+1 is 63 what is the value of the M?

    ক)
    11
    খ)
    23
    গ)
    22
    ঘ)
    32

    Explanation

    (M + 2M + 3 + 3M - 5 + 5M + 1) / 4 = 63 or, (11M - 1) = 63 * 4 or, 11M = 252 + 1 or, 11M = 253 or, M = 253 / 11 or, M = 23

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