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JEE Main 2022 · MathsMultiple choiceSingle correctMediumConceptual

JEE Main 26 June 2022, Shift 2, Maths Q20

Question 20 of 90 in this shift, Maths question 20 of 30, Section A.

Let

r \in \{p, q, \sim p, \sim q\}

be such that the logical statement

r \vee (\sim p) \Rightarrow (p \wedge q) \vee r

is a tautology. Then

r

is equal to :

(1) $p$
(2) $q$
(3) $\sim p$ Official answer
(4) $\sim q$

Official answer

Option 3

NTA final key.

Chapter: Semiconductor Electronics: Materials, Devices and Simple Circuits
Topic: No close match in our taxonomy
Idea tested: No close match in our taxonomy

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.