Which of the following statements is correct?
Answer and explanation
Correct answer: {1, 2, 3} = {1, 1, 2, 3, 3}
A set records whether an element is present, not how many times it is written. Therefore {1, 1, 2, 3, 3} has the same distinct elements as {1, 2, 3}; repeated entries do not change the set. The other options differ by at least one element: B has 4, C lacks 3, and D has 4 instead of 1. Hence A is true.
Frequently asked questions
What is the correct answer to this question?
{1, 2, 3} = {1, 1, 2, 3, 3}
Why is this the correct answer?
A set records whether an element is present, not how many times it is written. Therefore {1, 1, 2, 3, 3} has the same distinct elements as {1, 2, 3}; repeated entries do not change the set. The other options differ by at least one element: B has 4, C lacks 3, and D has 4 instead of 1. Hence A is true.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Common Questions.
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