JEE Main 2024 · MathsMultiple choiceSingle correctMediumCalculation

JEE Main 29 January 2024, Shift 1, Maths Q19

Question 19 of 90 in this shift, Maths question 19 of 30, Section A.

A fair die is thrown until 2 appears. Then the probability, that 2 appears in even number of throws, is

(1) $\frac{1}{6}$
(2) $\frac{5}{6}$
(3) $\frac{6}{11}$
(4) $\frac{5}{11}$ Official answer

Official answer

Option 4

NTA final key.

Chapter: Probability
Topic: Conditional Probability
Idea tested: Conditional Probability in Infinite Games

Same topic in other shifts

All Conditional Probability questions

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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.