If `n(A xx B) = 20` and `n(A) = 5` then `n(B)` is​

If n(A uu B) = 32, n(B) = 12 and n(A nn B) = 5 , then n(A) =

If n (A Delta B) = 12 and n(A nn B) = 3 , then find the greatest possible value of n(A xx B) .

If n(A xx B) = 24, n(B xx C) = 36 , and n(B) = 3 , then n(A xx C) =

If n(AnnB)=20 , n(AnnBnnC)=5 , then n(Ann(B-C)) is

(a) If n(A) = 6 and n(AxxB)=42 then find n(B) (b) If some of the elements of A xx B are (x,p),(p,q), (r,s) . Then find the minimum value of n(A xx B) .

If n(A) = 12 and n(B) = 20 , then find n(A DeltaB) when (i) A and B are disjoint and (ii) A sub B .