JEE Main 2021 · MathsMultiple choiceSingle correctEasyCalculation

JEE Main 25 July 2021, Shift 1, Maths Q63

Question 63 of 90 in this shift, Maths question 3 of 30, Section A.

The area (in sq. units) of the region, given by the set

\{(x,y)\in\mathbf{R}\times\mathbf{R}\mid x\ge0,\ 2x^2\le y\le4-2x\}

is :

(1) $\frac{7}{3}$ Official answer
(2) $\frac{8}{3}$
(3) $\frac{13}{3}$
(4) $\frac{17}{3}$

Official answer

Option 1

NTA final key.

Chapter: Application of Integrals
Topic: Area Under Curves
Idea tested: Area of Inequalities

Same idea in other shifts

Asked 10× in all

5 Apr 2026, Shift 1 · Q16The area of the region $R = \{(x, y) : xy \leq 27,\ 1 \leq y \leq x^2\}$ is equal to:MediumSingle correct
6 Apr 2026, Shift 1 · Q19The area of the region $\{(x,y): 0\le y\le 6-x,\ y^2\ge 4x-3,\ x\ge 0\}$ is:MediumSingle correct
3 Apr 2025, Shift 2 · Q19The area of the region $\left\{(x, y) : |x - y| \leq y \leq 4\sqrt{x}\right\}$ isMediumSingle correct
8 Apr 2025, Shift 2 · Q25Let the area of the bounded region $\{(x, y) : 0 \le 9x \le y^2, y \ge 3x - 6\}$ be $A$ . Then $6A$ is equal to __________MediumNumerical value
31 Jan 2024, Shift 1 · Q10The area of the region $\left\{(x,y):y^2\leq4x,\ x<4,\ \frac{xy(x-1)(x-2)}{(x-3)(x-4)}>0,\ x\neq3\right\}$ isHardSingle correct
6 Apr 2023, Shift 1 · Q26If the area of the region $S=\{(x,y):2y-y^2\le x^2\le 2y,\ x\ge y\}$ is equal to $\frac{n+2}{n+1}-\frac{\pi}{n-1}$ , then the natural…HardNumerical value
11 Apr 2023, Shift 1 · Q9Area of the region $\{(x,y) : x^2 + (y-2)^2 \le 4,\ x^2 \ge 2y\}$ isMediumSingle correct
13 Apr 2023, Shift 2 · Q11The area of the region $\{(x,y): x^2\le y\le |x^2-4|,\ y\ge1\}$ isHardSingle correct

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.