JEE Main 2020 — Probability Question with Solution
From: JEE Main 2020 (Online) 3rd September Evening Slot
Question
The probability that a randomly chosen 5-digit
number is made from exactly two digits is :
Choose an option
Show full solutionCorrect option: D
Correct answer
D
Step-by-step explanation
Sample space = 9 104
Case - I
Out of exactly two digits selected one is zero then favourable cases =
Case - II
Both selected digits are non-zero then favourable cases =
Probability =
Case - I
Out of exactly two digits selected one is zero then favourable cases =
Case - II
Both selected digits are non-zero then favourable cases =
Probability =
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This is a previous-year question from JEE Main 2020, 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.