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JEE Main 2026 · MathsNumerical answerNumerical valueMediumCalculation

JEE Main 2 April 2026, Shift 2, Maths Q21

Question 21 of 75 in this shift, Maths question 21 of 25, Section B.

Let

A = \{2, 3, 4, 5, 6\}

. Let

R

be a relation on the set

A \times A

given by

(x, y)R(z, w)

if and only if

x

divides

z

and

y|z w

. Then the number of elements in

R

is

Official answer

120

NTA final key.

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