Math 7 Q 2, Quiz 3

A well-defined collection of distinct objects.

• Set

• Subset

• Element

• Cardinality

Which of the following sets is well-defined?

• A set of supportive leaaders.

• A set of large numbers.

• A set of good students.

• A set of multiples of 5.

What is A ∪ B if A= {3, 6, 9, 12} B= {2, 4, 6, 8, 10, 12}?

• {2, 3, 4, 6, 8, 9, 10, 12}

• {2, 4, 6, 8, 10, 12}

• {3, 6, 9, 12}

• {6, 12}

What is a set that contains all the common element/s of the given sets?

• Union

• Cardinality

• Intersection

• Elements

Which among the numbers is a counting number?

• 1/3

• √-6

• ∛-27

• √36

What is the cardinality of the set {a, b, c, d}?

• 3

• 4

• 5

• 2

Which of the following is not a subset of {1, 2, 3}?

• {4}

• {2, 3}

• {1, 2, 3}

• {1, 2}

What is A ∩ B if A= {1, 2, 3} and B= {2, 3, 4}?

• {1}

• {2, 3}

• {3, 4}

• {1, 2, 3}

What is a set that contains all the elements of the given sets?

• Complement

• Difference

• Intersection

• Union

Refer to the figure, how many buys product A but not B?

• 7

• 10

• 13

• 21