Explore topic-wise MCQs in Discrete Mathematics.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Discrete Mathematics knowledge and support exam preparation. Choose a topic below to get started.

1.

Let A be {1, 2, 3, 4}, U be set of all natural numbers, then U-A (complement of A) is given by set.

A. {1, 2, 3, 4, 5, 6, .}
B. {5, 6, 7, 8, 9, }
C. {1, 2, 3, 4}
D. All of the mentioned
Answer» D. All of the mentioned
Discussion
2.

Two sets A and B contains a and b elements respectively. If power set of A contains 16 more elements than that of B, value of b and a are _______

A. 4, 5
B. 6, 7
C. 2, 3
D. None of the mentioned
Answer» B. 6, 7
Discussion
3.

If A is {{ }, { , { }}}, then the power set of A has how many element?

A. 2
B. 4
C. 6
D. 8
Answer» C. 6
Discussion
4.

In which of the following sets A B is equal to B A?

A. A = {1, 2, 3}, B = {2, 3, 4}
B. A = {1, 2, 3}, B = {1, 2, 3, 4}
C. A = {1, 2, 3}, B = {2, 3, 1}
D. A = {1, 2, 3, 4, 5, 6}, B = {2, 3, 4, 5, 1}
Answer» D. A = {1, 2, 3, 4, 5, 6}, B = {2, 3, 4, 5, 1}
Discussion
5.

Let the set A is {1, 2, 3} and B is {2, 3, 4}. Then the set A B is?

A. {1, -4}
B. {1, 2, 3}
C. {1}
D. {2, 3}
Answer» D. {2, 3}
Discussion
6.

Let the set A is {1, 2, 3} and B is { 2, 3, 4}. Then number of elements in A B is?

A. 1
B. 2
C. 3
D. 4
Answer» C. 3
Discussion
7.

Let the set A is {1, 2, 3} and B is {2, 3, 4}. Then the number of elements in A U B is?

A. 4
B. 5
C. 6
D. 7
Answer» B. 5
Discussion