JEE Main 2021 — Probability Question with Solution
From: JEE Main 2021 (Online) 25th July Morning Shift
Question
Let 9 distinct balls be distributed among 4 boxes, B1, B2, B3 and B4. If the probability than B3 contains exactly 3 balls is then k lies in the set :
Choose an option
Show full solutionCorrect option: A
Correct answer
A{x R : |x 3| < 1}
Step-by-step explanation
Required probability =
Which satisfies
Which satisfies
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This is a previous-year question from JEE Main 2021, 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.