Let $A$ and $B$ be two sets such that $n\left(A\right)=16$, $n\left(B\right)=12$, and $n(A\cap B)=8$. Then $n(A\cup B)$ equals

Q. Let A and B be two finite sets such that n(A) = 20, n(B) = 28 and n(A ∪ B) = 36, find n(A ∩ B).

Q. $\mathrm{Let}A\mathrm{and}B\mathrm{be}\mathrm{two}\mathrm{sets}\mathrm{such}\mathrm{that}n\left(A\right)=20,n(A\cup B)=42\mathrm{and}n(A\cap B)=5.\mathrm{Then},n(B-A)=$

Q.

Let A and B be two sets such that n (A) = 16, n(B) = 14, $n(A\cup B)$= 25. Then, $n(A\cap B)$ is equal to .

Q. Let $A$ and $B$ be two finite sets such that $n\left(A\right)=20$, $n\left(B\right)=28$ and $n(A\cup B)=36$, find $n(A\cap B)$. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}-->

Q. Let $A$ and $B$ be two sets such that $n\left(A\right)=70$, $n\left(B\right)=90$, and $n(A\cup B)=110$. Then $n(A\cap B)$ equals