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Subjects
Class 10MathematicsSetsEqual sets and SubsetsEasyLevel 7

Which of the following sets is a subset of ℝ?

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Answer and explanation

Correct answer: {1, 2, 3}

The set ℝ contains all real numbers. The elements 1, 2, and 3 are real numbers, so every element of {1, 2, 3} belongs to ℝ; hence {1, 2, 3} ⊆ ℝ. The other options contain words rather than real-number elements, so they are not subsets of the real-number set in the usual mathematical interpretation.

Tags

setsreal numberssubset examplesnumber setsEqual sets and SubsetsMathematicsClass 10 MCQ

Frequently asked questions

What is the correct answer to this question?

{1, 2, 3}

Why is this the correct answer?

The set ℝ contains all real numbers. The elements 1, 2, and 3 are real numbers, so every element of {1, 2, 3} belongs to ℝ; hence {1, 2, 3} ⊆ ℝ. The other options contain words rather than real-number elements, so they are not subsets of the real-number set in the usual mathematical interpretation.

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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