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    Question

    Find the average of first 50 natural

    numbers.
    A 50.15 Correct Answer Incorrect Answer
    B 20.75 Correct Answer Incorrect Answer
    C 51.3 Correct Answer Incorrect Answer
    D 25.5 Correct Answer Incorrect Answer

    Solution

    The first 50 natural numbers are 1,2,3,...,50 We know that, the sum of first n natural numbers = n(n+1)/2 Therefore, sum of first 50 natural numbers = 50(51)/2 = 1275 Hence, the average of first 50 natural numbers = 1275/50 = 25.5

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