Subject

    Quantitative Aptitude

    Topic

    Average

    The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero ?

    ক)
    0
    খ)
    1
    গ)
    -2
    ঘ)
    5

    Explanation

    Average of 20 numbers = 0. Sum of 20 numbers = (0 ×\times 20) = 0. It is quite possible that 19 of these numbers may be positive and if their sum is a, then 20th number is (- a).

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