JEE Main 2025 — Permutation Combination Question with Solution
JEE Main 2025 (7 Apr Shift 2)
Question
Let p be the number of all triangles that can be formed by joining the vertices of a regular polygon P of n sides and q be the number of all quadrilaterals that can be formed by joining the vertices of . If , then the eccentricity of the ellipse is :
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Show full solutionCorrect option: D
Correct answer
D
Step-by-step explanation
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This is a previous-year question from JEE Main 2025, covering the Permutation Combination 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.