Home Maths Set Theory and Relations Mix Let A = {1, 2, 3, 4, 5}; B = {2, 3, 6, 7}. T…
Maths Set Theory and Relations Mix Single Correct MCQ
Published on: August 14, 2026

Let A = {1, 2, 3, 4, 5}; B = {2, 3, 6, 7}. Then the number of elements in (A × B) ∩ ∩ (B × A) is

A
18
B
6
C
4
D
0

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Text Solution

Verified by Experts
The correct answer is:
C

Here and sets having 2 elements in common, so and have i.e., 4 elements in common.

Hence, .

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