Subject

    Quantitative Aptitude

    Topic

    Average

    The average of five numbers is x. If the average of the first four numbers is m, what is the value of the fifth number?

    ক)
    4m-5x
    খ)
    5x-4m
    গ)
    5x-m
    ঘ)
    5x-3m

    Explanation

    suppose, average of 5 number is x average of  4 number is m so 5th number is = 5x-4m

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