If `n(A)=2` and total number of relations from A to B is 1024, then number of elements in B is (A) 4 (B) 5 (C) 6 (D) none of these

If n(B)=2 and the number of functions from A and B which are onto is 30, then number of elements in A is (A) 4 (B) 5 (C) 6 (D) none of these

If C={z:Re[(3+4i)z]=0} thenthe number of elements in the set BcapC is (A) 0 (B) 1 (C) 2 (D) none of these

If n(B)=p,n(B)=q and total number of functions from A to B is 343, then p-q (A) 3 (B) -3 (C) 4 (D) none of these

The number of different possible orders of matrices having 12 identical elements is: (A) 3 (B) 1 (C) 6 (D) none of these

The number of elements in the power set p(s) of the set S={ [ᴓ] ,1 ,[2,3] } is. (A) 4 (B) 8 (C) 2 (D) none of these

Let total number of relations from set A to set B is 32, then the possible cardinal number of A and B may be.

n dice are thrown and the total number of possible outcomes in which at least one die shows 1 is 671, then n= (A) 3 (B) 4 (C) 5 (D) none of these

If n(A) = 4 and n(B) =6 , then minimum number of elements in A cup B is :

If n(A) = 3 and n(B) =5 , then maximum number of elements in A cap B is :

If the total number of relations form set A to set B is 1024, and n(A)gt1, n(B)gt1, then (A) n(A)=2, n(B)=5 (B) n(A)=5, n(B)=2 (C) n(A)=10, n(B)=1 (D) n(A)=1, n(B)=10