" 16.If mean of "1,2,3,...n" is "(6n)/(11)" then find the value of "n" ."

The mean of 1,2,3 …… n is (6n)/(11) , then n =

If .^(n)P_(3)=720 , then find the value of .^(11)P_(n) .

If "^(2n+1)P_(n-1):^(2n-1)P_n=3:5, then find the value of n .

If "^(2n+1)P_(n-1):^(2n-1)P_n=3:5, then find the value of n .

If ^(2n)C_3: ^nC_3=11:1 find the value of n.

The mean of the numbers 50, 40, 35, x + 10, x + 8, 12, 11, 8, 6 is 30. If median of the data is n^2 - 1, then find the positive value of 3n

n' arithmetic means are there between 4 and 36. If the ratio of 3rd and (n-2)th mean is 2:3, find the value of n.

n' arithmetic means are there between 4 and 36. If the ratio of 3rd and (n-2)th mean is 2:3, find the value of n.

If the mean of n observations 1^2, 2^2, 3^2,….n^2 is (46n)/(11) then n equal to

If ^(2n+1)P_(n-1):^(2n-1)P_(n)=3:5, then find the value of n.