JEE Main 2021 · MathsMultiple choiceSingle correctMediumApplication

JEE Main 26 February 2021, Shift 2, Maths Q73

Question 73 of 90 in this shift, Maths question 13 of 30, Section A.

A seven digit number is formed using digits

3, 3, 4, 4, 4, 5, 5

. The probability, that number so formed is divisible by

2

, is :

(1) $\frac{3}{7}$ Official answer
(2) $\frac{6}{7}$
(3) $\frac{1}{7}$
(4) $\frac{4}{7}$

Official answer

Option 1

NTA final key.

Chapter: Probability
Topic: Permutations and Combinations
Idea tested: Permutations with Repetition

Same idea in other shifts

Asked 11× in all

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