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Class 10MathematicsSetsThe Empty Set, Finite and Infinite Sets, Equal SetsEasyLevel 6

If A = {1, 2, 3} and B = {3, 2, 1, 1}, which conclusion is correct?

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Answer and explanation

Correct answer: A = B

In a set, the order in which elements are listed does not matter, and repeating an element does not produce an additional distinct element. Thus B has only the distinct elements 1, 2, and 3, exactly as A does. Since both sets contain the same elements, A = B. Therefore, option A is correct.

Tags

setsequal setsorder and repetitionset equalityThe Empty SetFinite and Infinite Setsthe empty set finite and infinite sets equal setsMathematicsClass 10 MCQ

Frequently asked questions

What is the correct answer to this question?

A = B

Why is this the correct answer?

In a set, the order in which elements are listed does not matter, and repeating an element does not produce an additional distinct element. Thus B has only the distinct elements 1, 2, and 3, exactly as A does. Since both sets contain the same elements, A = B. Therefore, option A is correct.

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Sets. Topic: The Empty Set, Finite and Infinite Sets, Equal Sets.

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