Discrete Mathematics (3140708) MCQs

MCQs of Set Theory

Showing 1 to 10 out of 70 Questions
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1.
The theory of sets was developed by which Mathematician?
(a) Newton
(b) Eular
(c) Cantor
(d) Cayley
Answer:

Option (c)

2.
A set is a collection of well defined _____.
(a) letters
(b) objects
(c) alphabets
(d) numbers
Answer:

Option (b)

3.
By which method we can't represent any set?
(a) listing method
(b) property method
(c) tabular method
(d) none of the above
Answer:

Option (c)

4.
A set which contain exactly one element is called _____ set.
(a) unary
(b) empty
(c) single
(d) singleton
Answer:

Option (d)

5.

If n(A)=n then the number of subset of A is _____.

(a)

2n
(b)

n2
(c)

nn
(d)

3n
Answer:

Option (a)

6.
A∆B=_____.
(a) A∪B
(b) A∩B
(c) U-A
(d) none
Answer:

Option (d)

7.
If U={1,2,3,4,5,6,7,8,9,10}, A={1,2,3,4,5} & B={4,5,6,7,8} then find A∆B.
(a) {1,2,3,7,8}
(b) {1,2,3,4,7,8}
(c) {1,2,3,4,5,6,7,8}
(d) {1,2,3,6,7,8}
Answer:

Option (d)

8.
Give the another representation of the following set. A={x:x is a divisor of 36 & x∈ℕ}.
(a) {1,2,3,4,6,8,12,18,36}
(b) {1,2,3,4,8,12,18,36}
(c) {1,2,3,4,6,9,12,18,36}
(d) {1,2,4,6,8,9,12,18,36}
Answer:

Option (c)

9.

n(A')=_____.

(a)

n(A)-n(U)
(b)

n(U)+n(A)
(c)

n(U)±n(A)
(d)

n(U)-n(A)
Answer:

Option (d)

10.

Let A and B are two sets such that n(A)=12, n(A∪B)=36 & n(A∩B)=8. Then n(B)=_____?

(a)

30
(b)

32
(c)

34
(d)

36
Answer:

Option (b)

Showing 1 to 10 out of 70 Questions
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