If A = {1, 2, 3}, which of the following sets is a proper subset of A?
Answer and explanation
Correct answer: {1, 2}
A proper subset contains only elements of the original set and is not equal to the original set. The set {1, 2} contains elements that are all in A, but it omits 3, so it is smaller than A and is a proper subset. Option B equals A, option C contains the extra element 4, and option D also contains 4, which is not in A.
Frequently asked questions
What is the correct answer to this question?
{1, 2}
Why is this the correct answer?
A proper subset contains only elements of the original set and is not equal to the original set. The set {1, 2} contains elements that are all in A, but it omits 3, so it is smaller than A and is a proper subset. Option B equals A, option C contains the extra element 4, and option D also contains 4, which is not in A.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Sets. Topic: Equal sets and Subsets.
