Discrete Mathematics Questions and Answers – Sets – Venn Diagram

This set of Discrete Mathematics Multiple Choice Questions & Answers (MCQs) focuses on “Sets – Venn Diagram”.

1. The shaded area of figure is best described by?

a) A ∩ B
b) A U B
c) A
d) B
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2. The shaded area of figure is best described by?

a) A‘ (Complement of A)
b) A U B -B
c) A ∩ B
d) B
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3. If n(A)=20 and n(B)=30 and n(A U B) = 40 then n(A ∩ B) is?
a) 20
b) 30
c) 40
d) 10
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4. The shaded area of figure is best described by?

a) A‘ (Complement of A)
b) B – (A ∩ B) – (C ∩ B)
c) A ∩ C ∩ B
d) B’ (Complement of B)
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5. The relation between sets A, B, C as shown by venn diagram is __________
a) A is subset of B and B is subset of C
b) C is not a subset of A and A is subset of B
c) C is subset of B and B is subset of A
d) None of the mentioned
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6. Let A: All badminton player are good sportsperson.
B: All person who plays cricket are good sportsperson.
Let X denotes set of all badminton players, Y of all cricket players, Z of all good sportsperson. Then which of the following statements is correct?
a) Z contains both X and Y
b) Z contains X and Y is outside
c) X contains Y and Z
d) None of the mentioned
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7. If n(A)=10, n(B)=30,n(C)=50 and if set A, B, C are pairwise disjoint then which of the following is correct?
a) n(A U B)=0
b) n(B U C)=0
c) n(A U B U C)=90
d) All of the mentioned
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8. In the given figure the if n(A)=20,n(U)=50,n(C)=10 and n(A∩B)=5 then n(B)=?

a) 35
b) 20
c) 30
d) 10
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9. Let the students who likes table tennis be 12, the ones who like lawn tennis 10, those who like only table tennis are 6, then number of students who likes only lawn tennis are, assuming there are total of 16 students.
a) 16
b) 8
c) 4
d) 10
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10. The shaded area of figure is best described by?

a) A‘ (Complement of A)
b) A U B – (A ∩ B)
c) A – B
d) B
View Answer

Sanfoundry Global Education & Learning Series – Discrete Mathematics.

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