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JEE Main 2022 · MathsMultiple choiceSingle correctHardMulti-step

JEE Main 29 June 2022, Shift 1, Maths Q1

Question 1 of 90 in this shift, Maths question 1 of 30, Section A.

The probability that a randomly chosen

2\times 2

matrix with all the entries from the set of first 10 primes, is singular, is equal to :

(1) $\frac{133}{10^4}$
(2) $\frac{18}{10^3}$
(3) $\frac{19}{10^3}$ Official answer
(4) $\frac{271}{10^4}$

Official answer

Option 3

NTA final key (2022 Session 1).

Chapter: Probability
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 42 of the 174 JEE Main shifts held from 2017 to 2026.