JEE Main2019Math
Q.
Let S = {1, 2, 3, ... , 100}. The number of non-empty subsets A of S such that the product of elements in A is even is
- A
2100 –1
- B
250 + 1
- C
250(250 –1)
- D
250 – 1
Solution
Let S = {1, 2, 3, ... , 100}. The number of non-empty subsets A of S such that the product of elements in A is even is
2100 –1
250 + 1
250(250 –1)
250 – 1