If n(A) = 27,n (B) = 33 and `n(A nnB) = 15`, find n`(A uuB)`

Let A and B be two finite sets such that n(A) =85, n(B) = 65and n(A ∪ B) = 135, find n(A ∩ B)?

Let A and B be Two Given Finite Sets Such That n(A) =20, n(B)=28, and n(A ∪ B) =36, Find n(A ∩ B).

If A and B are two sets such that : n(A)=17, n (A uu B)=38 and n (A nn B)=2 . Find: n (B), n (A - B) and n (B - A).

If A and B are two sets such that : n(A)=20, n (A uu B)=42 and n (A nn B)=4 . Find: n (B), n (A - B) and n (B - A).

Let n(U)=500. If A and B are such that n(A)=200, n(B)=300 and n(AcapB) =100 then n(A' cap B') is equal to:

If (n+1)! = 12 [(n-1)!], find n.

If (n+2)! =(2550)(n!), find n.

If (n+2)! = 60 [(n-1)!], find n.

If lim_(x rarr 3)(x^n-3^n)/(x-3)=108 , and n in N , find n.