/

Learn

Saturday, 31 October

/

JEE Main 2022 · MathsMultiple choiceSingle correctEasyApplication

JEE Main 27 June 2022, Shift 2, Maths Q20

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

Which of the following statement is a tautology ?

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

Official answer

Option 3

NTA final key.

Chapter: Mathematical Reasoning
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.