If A = {1, 2, 3, 4, 5}, then the number of proper subsets of A is—

1. If A = {1, 2, 3, 4, 5}, then the number of proper subsets of A is—

[Office (Cash) 2017 [MCQ] : 2017]

1. 120

2. 30

3. 31

4. 32

Answer

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