JEE Main 2012 — Probability Question with Solution
JEE Main 2012 (26 May Online)
Question
There are two balls in an urn. Each ball can be either white or black. If a white ball is put into the urn and there after a ball is drawn at random from the urn, then the probability that it is white is
Choose an option
Show full solutionCorrect option: B
Correct answer
B
Step-by-step explanation
Total possible event when one ball is taken out Let : The event of 1 white ball coming out
No. of ways to 1 white ball coming out
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This is a previous-year question from JEE Main 2012, 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.