The number of elements in power set of $A=\{1,2,3,8,9,10\}$ is

Q. The number of elements in power set of $A=\{1,2,3,8,9,10\}$ is

Q. The number of unordered pairs $(A,B)$ of subsets of the sets $S=\{1,2,3,4,5,6\}$ such that $A\cap B=\varphi$ and $A\cup B=S$ is

Q. Find the number of proper subsets of the set formed by union of the two given sets.
A = {1, 2, 3} B = {a, 1, b, 2, 3, c}

Q. If $A=\{5,6,7\},B=\{1,2,3,4\}$, then number of elements in set $(A-B)\times B$ is