Subject
Bank Exam
Topic
Janata Bank Executive Officer 2017 (Morning)
The average of the first 50 natural number is:
The average of the first 50 natural number is:
ক)
12.25খ)
21.25গ)
25ঘ)
25.5Explanation
Sum of first n non-zero positive integers n(n + 1)/2 So, average of first n non-zero positive integers n(n + 1)/2n = (n + 1)/2 => (50 + 1)/2 = 25.5Related questions
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