JEE Main 2022MathematicsProbabilityBayes TheoremmediumMCQ

JEE Main 2022Probability Question with Solution

From: JEE Main 2022 (Online) 24th June Morning Shift

Question

Bag A contains 2 white, 1 black and 3 red balls and bag B contains 3 black, 2 red and n white balls. One bag is chosen at random and 2 balls drawn from it at random, are found to be 1 red and 1 black. If the probability that both balls come from Bag A is , then n is equal to __________.

Choose an option

Show full solutionCorrect option: C
Correct answer
C4

Step-by-step explanation

JEE Main 2022 (Online) 24th June Morning Shift Mathematics - Probability Question 92 English Explanation


Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the Probability chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.

Solve interactively →

About this question

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.