Explore topic-wise MCQs in Discrete Mathematics.

This section includes 9 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.

A non-planar graph can have ____________

A. complete graph
B. subgraph
C. line graph
D. bar graph
Answer» C. line graph
2.

What is the number of edges of the greatest planar subgraph of K3,2 where m,n≤3?

A. 18
B. 6
C. 128
D. 702
Answer» C. 128
3.

Suppose G be a connected planar graph of order n≥5 and size m. If the length of the smallest cycle in G is 5, then which of the following is true?

A. (m+n)4>=mn
B. m≤5/3(n−2)
C. (m2+n)/3
D. n>=(6/5)(n+1)
Answer» C. (m2+n)/3
4.

For a connected planar simple graph G=(V, E) with e=|E|=16 and v=|V|=9, then find the number of regions that are created when drawing a planar representation of the graph?

A. 321
B. 9
C. 1024
D. 596
Answer» C. 1024
5.

If the number of vertices of a chromatic polynomial PG is 56, what is the degree of PG?

A. 344
B. 73
C. 265
D. 56
Answer» E.
6.

Determine the density of a planar graph with 34 edges and 13 nodes.

A. 22/21
B. 12/23
C. 328
D. 576
Answer» B. 12/23
7.

If Cn is the nth cyclic graph, where n>3 and n is odd. Determine the value of X(Cn).

A. 32572
B. 16631
C. 3
D. 310
Answer» D. 310
8.

If a graph G is k-colorable and k

A. n-colorable
B. n2 nodes
C. (k+n)-colorable
D. (k3+n3+1) nodes
Answer» B. n2 nodes
9.

The chromatic number of a graph is the property of ____________

A. graph coloring
B. graph ordering
C. group ordering
D. group coloring
Answer» C. group ordering