1. The
complement of the set A is _____________
A). A
– B
B). U
– A
C). A
– U
D). B
– A
2. The set
difference of the set A with null set is __________
A). A
B). null
C). U
D). B
3. The
difference of {1, 2, 3} and {1, 2, 5} is the set ____________
A). {1}
B). {5}
C). {3}
D). {2}
4. Two sets
are called disjoint if there _____________ is the empty set.
A). Union
B). Difference
C). Intersection
D). Complement
5. Which of
the following two sets are disjoint?
A). {1,
3, 5} and {1, 3, 6}
B). {1,
2, 3} and {1, 2, 3}
C). {1,
3, 5} and {2, 3, 4}
D). {1,
3, 5} and {2, 4, 6}
6. Two sets
are called disjoint if there _____________ is the empty set.
A). Union
B). Difference
C). Intersection
D). Complement
7. The union
of the sets {1, 2, 5} and {1, 2, 6} is the set _______________
A). {1,
2, 6, 1}
B). {1,
2, 5, 6}
C). {1,
2, 1, 2}
D). {1,
5, 6, 3}
8. The
intersection of the sets {1, 2, 5} and {1, 2, 6} is the set _____________
A). {1,
2}
B). {5,
6}
C). {2,
5}
D). {1,
6}
9. In which of
the following sets A – B is equal to B – A?
A). A
= {1, 2, 3}, B = {2, 3, 4}
B). A
= {1, 2, 3}, B = {1, 2, 3, 4}
C). A
= {1, 2, 3}, B = {2, 3, 1}
D). A
= {1, 2, 3, 4, 5, 6}, B = {2, 3, 4, 5, 1}
10. If A has 4
elements B has 8 elements then the minimum and maximum number of elements in A
U B are ____________
A). 4,
8
B). 8,
12
C). 4,
12
D). None
of the mentioned
11. If A is
{{Φ}, {Φ, {Φ}}}, then the power set of A has how many element?
A). 2
B). 4
C). 6
D). 8
12. Let the set
A is {1, 2, 3} and B is {2, 3, 4}. Then the number of elements in A U B is?
A). 4
B). 5
C). 6
D). 7
13. Let the set
A is {1, 2, 3} and B is { 2, 3, 4}. Then number of elements in A ∩ B is?
A). 1
B). 2
C). 3
D). 4
14. Let the set
A is {1, 2, 3} and B is {2, 3, 4}. Then the set A – B is?
A). {1,
-4}
B). {1,
2, 3}
C). {1}
D). {2,
3}
15. Let A be
set of all prime numbers, B be the set of all even prime numbers, C be the set
of all odd prime numbers, then which of the following is true?
A). A
≡ B U C
B). B
is a singleton set.
C). A
≡ C U {2}
D). All
of the mentioned
16. Two sets A
and B contains a and b elements respectively. If power set of A contains 16
more elements than that of B, value of ‘b’ and ‘a’ are _______
A). 4,
5
B). 6,
7
C). 2,
3
D). None
of the mentioned
17. Let A be
{1, 2, 3, 4}, U be set of all natural numbers, then U-A’(complement of A) is
given by set.
A). {1,
2, 3, 4, 5, 6, ….}
B). {5,
6, 7, 8, 9, ……}
C). {1,
2, 3, 4}
D). All
of the mentioned
18. Which sets
are not empty?
A). {x:
x is a even prime greater than 3}
B). {x
: x is a multiple of 2 and is odd}
C). {x:
x is an even number and x+3 is even}
D). {
x: x is a prime number less than 5 and is odd}
19. 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
20. 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
21. 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
22. 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
23. 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
