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JEE Main 2024 · MathsNumerical answerNumerical valueMediumCalculation

JEE Main 9 April 2024, Shift 2, Maths Q21

Question 21 of 90 in this shift, Maths question 21 of 30, Section B.

Let

A=\{(x, y): 2x+3y=23,\ x, y\in\mathbb{N}\}

and

B=\{x: (x, y)\in A\}

. Then the number of one-one functions from

A

to

B

is equal to ____________.

Official answer

24

NTA final key.

Chapter: Permutations and Combinations
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 42 of the 174 JEE Main shifts held from 2017 to 2026.