Question

The number of subsets of A = {1, 2, 3,4} is _____.

• A. 8
• B. 7
• C. 6
• D. 5

Answer 1

The correct option is B

7

The number of subsets of a set having 'n' elements = $2^n$

A = {1, 2, 3,4}

n(A) = 4

Number of proper subsets of A = $2^4=16$.