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 n(A)=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 total number of ways of selecting 4 letters from the word NARAYANA is: (A) 10 (B) 9 (C) 12 (D) none of these

Let A={2,3} and B={4,5,6}. Find the number of relations from A to B.

If a group of n distinct objects, the number of arrangements of 4 object is 12 times the number of arrangements of 2 objects, then the number of objects is (a) 10 (b) 8 (c) 6 (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.

The number of solutions of the equation tanx.tan4x=1 for 0ltxltpi is (A) 2 (B) 4 (C) 6 (D) none of these

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

The number of terms in the expansion of (x+1/x+1)^n is (A) 2n (B) 2n+1 (C) 2n-1 (D) none of these

Total number of edges of a cuboid is (a) 4 (b) 6 (c) 8 (d) 12