Question

let S = {1, 2, … 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:
(A) 7/2²⁰
(B) 5/2²⁰
(C) 4/2²⁰
(D) 6/2²⁰

Answer 1

Answer:

Step-by-step explanation:

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