Home Maths Probability JEE Main 2019 Let . A subset of is said to be "nice", i…
Maths Probability JEE Main 2019 Single Correct MCQ
Published on: August 13, 2026

Let . A subset of is said to be "nice", if the sum of the elements of is . Than the probability that a randomly chosen subset of is "nice" is:

A
B
C
D

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The correct answer is:
B

JEE Main 2019
Since total number of subsets of the set

Now, the sum of all number from to

Then, find the sets which has sum .

(e)

Then, there is only sets which has sum
Hence required probability

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