Question 387786: How many subsets does the set {A,B,C,D,E} have?
Answer by richard1234(7193)   (Show Source):
You can put this solution on YOUR website! For any subset S, we can choose which elements belong in S. This means:
A is in S or A is not in S
B is in S or B is not in S
.
.
.
E is in S or E is not in S
Each case has 2 possibilities, so the total number of subsets (including the empty set and {A,B,C,D,E}) is 2^5, or 32.
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