Question
While listing N consecutive even numbers for determining
their average, the last number, by mistake, got replaced by the next odd number and thereby the average turned out to be more than the desired value by 0.0125. What is the value of N?Solution
According to the question, Last number is Nth + 1 Difference of present and actual should be 1 āµ last number is the next odd digit of that even digit, Now, For difference average change by 1/N Here, 1/N = 0.0125 ā N = 1/0.0125 ā 10000/125 ā 80 ā“The value of N is 80
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