Which set is not equal to A = {1, 2, 4, 8}?
Answer and explanation
Correct answer: {1, 2, 4, 8, 16}
Option A has the same four elements in a different order, and order does not matter in a set. Option B repeats 1, but repetition does not add a new element. Option C is the set of positive factors of 8, namely {1, 2, 4, 8}. Option D contains one additional element, 16, so it is not equal to A.
Frequently asked questions
What is the correct answer to this question?
{1, 2, 4, 8, 16}
Why is this the correct answer?
Option A has the same four elements in a different order, and order does not matter in a set. Option B repeats 1, but repetition does not add a new element. Option C is the set of positive factors of 8, namely {1, 2, 4, 8}. Option D contains one additional element, 16, so it is not equal to A.
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.
