Q65 / 180 · COMEDK 2015 · Mathematics

If a set $A$ has 4 elements, then the total number of proper subsets of set $A$, is

A
16
B
14
Correct answer
C
15
D
17

Solution

$n(A)=4$ (given) $\therefore$ Total number of subsets of $A=2^{4}=16$ $\therefore$ Number of proper subsets $=16-1=15$

Hence, the correct answer is option: 'C'.

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