JEE Main 2022 — Probability Question with Solution
From: JEE Main 2022 (Online) 27th June Evening Shift
Question
Let S = {E1, E2, ........., E8} be a sample space of a random experiment such that for every n = 1, 2, ........, 8. Then the number of elements in the set is ___________.
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Show full solutionCorrect answer: 19
Step-by-step explanation
Here for n = 1, 2, 3, ......, 8
Here
If one of the number from {1, 2, ......, 8} is left then total by 3 ways.
Similarly by leaving terms more 2 or 3 we get 16 more combinations.
Total number of different set A possible is 16 + 3 = 19
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This is a previous-year question from JEE Main 2022, covering the Probability 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.