Let the function


Let $S=\{1,2, \ldots \ldots, 20\}$. A subset $B$ of $S$ is said to be "nice", if the sum of the elements of B is 203 . Then the probability that a randomly chosen subset of $S$ is "nice" is :-

  1. $\frac{6}{2^{20}}$

  2. $\frac{5}{2^{20}}$

  3. $\frac{4}{2^{20}}$

  4. $\frac{7}{2^{20}}$

Correct Option: , 2


Leave a comment


Click here to get exam-ready with eSaral

For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.

Download Now