If n(A)=4, n(B)=5 and number of functions from A to B such that range contains exactly 3 elements is k, `k/(60)` is ………. .

Let n(A)=3 and n(B)=5 , then the number of one - one functions from A to B is

The number of bijective function from a set A to itself when A contains n elements is-

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(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)=3 and n(B)=4 , then no. of of one-one function from A to B is :

Let n(A)=4 and n(B)=5 . The number of all possible many-one functions from A to B is

Let n(A) = 4 and n(B) = k. The number of all possible injections from A to B is 120 then k =

The number of bijective functions from A to B if n(A)=n(B)=4