Question
If the mean deviation about the mean of the numbers 1, 2, 3, .........., n, where n is odd, is ${{5(n + 1)} \over n}$, then n is equal to ______________.
Correct Answer
21
If the mean deviation about the mean of the numbers 1, 2, 3, .........., n, where n is odd, is ${{5(n + 1)} \over n}$, then n is equal to ______________.