If and , then is equal to | CGP Edu

Maths Set Theory and Relations Set Theory Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 12, 2026

If and , then is equal to

A

X

B

Y

C

N

D

None of these

Text Solution

Verified by Experts

The correct answer is:

Since,

=

=

(

= is a multiple of 9 for .

For = , For =

is a multiple of 9 for all

X contains elements which are multiples of 9 and clearly Y contains all multiples of 9.

,

.

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