JEE Main 2021 — Probability Question with Solution
From: JEE Main 2021 (Online) 1st September Evening Shift
Question
Two squares are chosen at random on a chessboard (see figure). The probability that they have a side in common is :
This question includes a diagram. The text above accompanies the figure.
Choose an option
Show full solutionCorrect option: B
Correct answer
B
Step-by-step explanation
Total ways of choosing square =
ways of choosing two squares having common side = 2 (7 8) = 112
Required probability .
Ans. (b)
ways of choosing two squares having common side = 2 (7 8) = 112
Required probability .
Ans. (b)
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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.