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Subjects
Class 10MathematicsSetsEqual sets and SubsetsEasyLevel 7

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

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Answer and explanation

Correct answer: A ⊆ B

A set A is a subset of B when every element of A is also an element of B. The elements of A are 1 and 2, and both occur in B. Although B has the additional element 3, that does not prevent A from being a subset of B. Thus A ⊆ B, and the inclusion is proper because A and B are not equal.

Tags

setssubsetsproper subsetset inclusionEqual sets and SubsetsMathematicsClass 10 MCQ

Frequently asked questions

What is the correct answer to this question?

A ⊆ B

Why is this the correct answer?

A set A is a subset of B when every element of A is also an element of B. The elements of A are 1 and 2, and both occur in B. Although B has the additional element 3, that does not prevent A from being a subset of B. Thus A ⊆ B, and the inclusion is proper because A and B are not equal.

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Sets. Topic: Equal sets and Subsets.

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