Learn

Saturday, 31 October

JEE Main 2020 · MathsMultiple choiceSingle correctMediumApplication

JEE Main 4 September 2020, Shift 1, Maths Q52

Question 52 of 75 in this shift, Maths question 2 of 25.

Let [t] denote the greatest integer ≤\le t. Then the equation in xx, [x]2+2[x+2]−7=0[x]^2 + 2[x+2] - 7 = 0 has :
  1. (1)no integral solution.
  2. (2)exactly two solutions.
  3. (3)exactly four integral solutions.
  4. (4)infinitely many solutions.Official answer

Official answer

Option 4

NTA final key (Sep 2020).

Chapter
Relations and Functions
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.