JEE Main 2024 — Functions Question with Solution
From: JEE Main 2024 (Online) 9th April Evening Shift
Question
Let and . Then the number of one-one functions from to is equal to _________.
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Show full solutionCorrect answer: 24
Correct answer
24
Step-by-step explanation
So, total number of one-one functions from A to B is
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This is a previous-year question from JEE Main 2024, covering the Functions 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.