Find the solution
 $$\begin{gathered} 9. Express the shaded part of the diagram given below in terms of union \\ and intersection of the sets A, B and C. \end{gathered}$$
                           

$$\begin{gathered} If n\left(\zeta \right) = 200, n\left(A\right) = 80, n\left(B\right) = 75, n\left(C\right) and n(A\cap C) = 30 ; find : \\ \left(i\right) n(A\cup C) \left(ii\right) n(A\cup C)\text{'} \\ \left(iii\right)n(A\cup B)\text{'} \left(iv\right) n(A\cup B)\text{'}-n\left(C\right) \end{gathered}$$