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  1. Find the average of first 20 consecutive natural numbers.

    2. A.
    12.20
    B.
    10.78
    C.
    16.45
    D.
    10.5

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    Answer : Option D

    Explanation :


    The average of first n consecutive natural numbers is given by;
    =(n+1)/2
    Here, n=20
    So, average = (20+1)/2
    =210/20
    =21/2
    =10.5

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