Two sets A and B are such that `n(A cup B)=21,n(A' cap B')=9,n(A cap B)=7` find `n(A cap B)'`

Two sets A and B are such that n(A cup B)=21 ,n(A)=10,n(B)=15 then find n(a cap B) and n(A-B)

If n(AcupB)=18 n(A cap B)=5 ,n(B -A)=3 ,then find n(A cap B)

If n(A) =5, n(A cup B) = 9 , n(A cap B)=2 , find n(B).

n(A)=2,n(B)=7, n(A cap B)=1 and n (A cup B) ?

If A and B are two sets such that n (A)=27, n(B)=35 and n(A cup B) =50 . Find n(A cap B) .

If A and B are two sets such that n(A)=12, n(B)=19 and (A cup B)=26 then find. (a) n(A cap B) (b) n(A-B) (c) n(B-A)

If A and B are two sets such that n(A)=12, n(B)=19 and (A cup B)=26 then find. (a) n(A cap B) (b) n(A-B) (c) n(B-A)

If A and B are two sets such that n(A) = 17,n(B)=23 and n(A cup B) = 38 , then find n(A cap B) .

If A and B are two sets such that n (A) =37, n(B) =26 and n (A cup B) =51 , find n(A cap B) .

If A and B are two sets such that n(A) = 17,n(B)=23 and n(A cup B) = 38 , then find n(A cap B) .