JEE Main 2021 — Probability Question with Solution
From: JEE Main 2021 (Online) 27th July Morning Shift
Question
The probability that a randomly selected 2-digit number belongs to the set {n N : (2n 2) is a multiple of 3} is equal to :
Choose an option
Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
Total number of cases =
Now,
=
is multiply of 3 only when n is odd
Required Probability
Now,
=
is multiply of 3 only when n is odd
Required Probability
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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.