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Discrete mathematics part 3
Course: Discrete Mathematics
11 Documents
Students shared 11 documents in this course
University: Chhatrapati Shahu Ji Maharaj University
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1. 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
Ans.D
2. 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
Ans.C
3. 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
Ans.A
4. 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
Ans.D
