If mean of 1, 2, 3, --------- n is 6n/11, then n is

Answer 1

The sum of a series of integers (1,2,3.. n)is

n(n+1)/2

so the mean is the total/n, hence

n(n+1)/2n
=6n/11

solve for n

I got n=11

Answer 2

Thank you

Answer 3

can u pls give a proper brief explaination pls ??

Answer 4

I am not understand your answer