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Discussion :: Average

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

  2. A.

    0

    B.

    1

    C.

    10

    D.

    19

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    Answer : Option D

    Explanation :

    Average of 20 numbers = 0.

     Sum of 20 numbers (0 x 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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