# Discrete Mathematics Questions and Answers updated daily – Computer Knowledge

Discrete Mathematics Questions: Solved 34 Discrete Mathematics Questions and answers section with explanation for various online exam preparation, various interviews, Computer Knowledge Category online test. Category Questions section with detailed description, explanation will help you to master the topic.

## Discrete Mathematics Questions

21. In a graph if e=(u, v) means

Correct Ans:both b and c
Explanation:
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22. In how many ways can a president and vice president be chosen from a set of 30 candidates?

Correct Ans:870
Explanation:
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23. The number of colours required to properly colour the vertices of every planar graph is

Correct Ans:5
Explanation:
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24. An undirected graph possesses an eulerian circuit if and only if it is connected and its vertices are

Correct Ans:all of even degree
Explanation:
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25. A graph is a collection of

Correct Ans:vertices and edges
Explanation:
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26. In an undirected graph the number of nodes with odd degree must be

Correct Ans:even
Explanation:
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27. A graph G is called a ..... if it is a connected acyclic graph

Correct Ans:Tree
Explanation:
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28. The set of positive integers is _________ .

Correct Ans:Infinite
Explanation:
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29. Power set of empty set has exactly _____ subset.

Correct Ans:2
Explanation:
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30. The set O of odd positive integers less than 10 can be expressed by _______

Correct Ans:{1,3,5,7,9}
Explanation:
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31. A _______ is an ordered collection of objects.

Correct Ans:Set
Explanation:
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32. Consider an undirected random graph of eight vertices. The probability that there is an edge between a pair of vertices is 1/2. What is the expected number of unordered cycles of length three?

Correct Ans:7
Explanation:
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33. Which one of the following statements is incorrect ?

Correct Ans:Cyclometric complexity for a flow graph G is V(G) = N–E+2, where E is the number of edges and N is the number of nodes in the flow graph.
Explanation:
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34. The members of the set S = {x | x is the square of an integer and x < 100} is

Correct Ans:{0, 1, 4, 9, 16, 25, 36, 49, 64, 81}
Explanation:
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