Question

2. If A = {i,j,k,l,m }, then the number of proper subsets of A is
(A) 31
(B) 32
(C) 25
(D) 6
​

Answer 1

Number of subsets = 2^n

• n = Number of elements in set.

=> 2⁵ = 32

• Number of subsets of A is 32 (B)