JEE Main 2022MathematicsSets And RelationsNumber Of Sets And RelationsmediumNumerical

JEE Main 2022Sets And Relations Question with Solution

From: JEE Main 2022 (Online) 26th July Evening Shift

Question

Let and . Then the number of elements in the set is ___________.

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Show full solutionCorrect answer: 112
Correct answer
112

Step-by-step explanation

As C B , c must be not be formed by {1, 2, 4, 5}

Number of subsets of A = 27 = 128

and number of subsets formed by {1, 2, 4, 5} = 16

Required no. of subsets = 27 24 = 128 16 = 112

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About this question

This is a previous-year question from JEE Main 2022, covering the Sets And Relations chapter of Mathematics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.