What is A = {x ∈ N : x is a composite number less than 11}?
Answer and explanation
Correct answer: A = {4, 6, 8, 9, 10}
A composite number is a natural number greater than 1 that has more than two positive divisors. The natural numbers less than 11 are 1 through 10. Among them, 4, 6, 8, 9, and 10 are composite. The numbers 2, 3, 5, and 7 are prime, while 1 is neither prime nor composite. Therefore A = {4, 6, 8, 9, 10}.
Frequently asked questions
What is the correct answer to this question?
A = {4, 6, 8, 9, 10}
Why is this the correct answer?
A composite number is a natural number greater than 1 that has more than two positive divisors. The natural numbers less than 11 are 1 through 10. Among them, 4, 6, 8, 9, and 10 are composite. The numbers 2, 3, 5, and 7 are prime, while 1 is neither prime nor composite. Therefore A = {4, 6, 8, 9, 10}.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Sets. Topic: The Empty Set, Finite and Infinite Sets, Equal Sets.
