The average of 'n' numbers is z. If the number x is replaced by the number `x^(1)` , then the average becomes `z^(1)` . Find the relation between n, z, `z^(1)` , x and `x^(1)` .

Options

A. `[(z^(1)-2)/(x^(1)-x)=(1)/(n)]`
B. `[(x^(1)-x)/(z^(1))=(1)/(n)]`
C. `[(z-z^(1))/(x-x^(1))=(1)/(n)]`
D. `[(x-x^(1))/(z-z^(1))=(1)/(n)]`

Answer

C