JEE Main 5 September 2020, Shift 1, Maths Q75

Question 75 of 75 in this shift, Maths question 25 of 25.

Four fair dice are thrown independently 27 times. Then the expected number of times, at least two dice show up a three or a five, is ________.

Official answer

11.00

NTA final key (Sep 2020).

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 108 of the 174 JEE Main shifts held from 2017 to 2026.