If n(A) = 35, n (B) = n(B) = 40 and `n(A cup B)` = 50, find `n(A cap B)`.

If n(A) = 5, n(B) = 6 and n(A uu B) = 11, then find n(A nn B).

If n(A)= 20, n(B) = 28 and n(Acup B) = 36, then n(A cap BP) =?

If n(A)= 7, n(B)= 13, n(A cap B) = 4 , then n(A cup B) = ?

If n(A) = 7, n(B) = 13, n (A nn B) = 4, then n (A uu B) =?

If n(A)=45,n(B)=52 and n(A uu B) =70.Then find n(A nn B)

Choose the coorect altertnative answer for each of the following question: n(B) = 40, n(A cap B) = 20, n(A cup B) = 35 , find n(A).