If A = {1, 2, 3}, which of these is not a subset of A?
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Answer and explanation
Correct answer: {2, 4}
A set is a subset of A only when every element of that set belongs to A. The elements 1 and 3 are in A, so {1,3} is a subset. The empty set is a subset of every set, and A itself is also a subset of A. However, {2,4} contains 4, which is not in A. Therefore {2,4} is not a subset, making option C correct.
Frequently asked questions
What is the correct answer to this question?
{2, 4}
Why is this the correct answer?
A set is a subset of A only when every element of that set belongs to A. The elements 1 and 3 are in A, so {1,3} is a subset. The empty set is a subset of every set, and A itself is also a subset of A. However, {2,4} contains 4, which is not in A. Therefore {2,4} is not a subset, making option C correct.
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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