Question

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

Answer 1

to find the subsets the formula is 2ⁿ

there are 5 elements in the set

so 2^5 =32

option B is correct