Which collection can be considered a set in mathematics?
Answer and explanation
Correct answer: Natural numbers less than 10
A mathematical set must be well-defined, meaning that membership can be decided clearly and objectively. The natural numbers less than 10 are exactly {1, 2, 3, 4, 5, 6, 7, 8, 9} under the usual convention. Words such as beautiful, intelligent, and popular can vary by opinion, so they do not define fixed collections.
Frequently asked questions
What is the correct answer to this question?
Natural numbers less than 10
Why is this the correct answer?
A mathematical set must be well-defined, meaning that membership can be decided clearly and objectively. The natural numbers less than 10 are exactly {1, 2, 3, 4, 5, 6, 7, 8, 9} under the usual convention. Words such as beautiful, intelligent, and popular can vary by opinion, so they do not define fixed collections.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Common Questions.
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