Question
General Aptitude Question on Sets and Relations
A set P has 20 elements. The number of subsets of P containing odd number of elements is
A
218+20
B
219
C
219-1
D
220-128
Answer
219
Explanation
Solution
The correct option is (B): 219.
A set P has 20 elements. The number of subsets of P containing odd number of elements is
218+20
219
219-1
220-128
219
The correct option is (B): 219.