EduSahara™ Worksheet

Question 1

1.

Find the cardinality of A = {8,-4,-5}

(i)

2
(ii)

6
(iii)

4
(iv)

3
(v)

0

Question 2

2.

If A = {-3,6}, then n(A) = ?

(i)

2
(ii)

1
(iii)

0
(iv)

4
(v)

3

Question 3

3.

Which of the following is a singleton set?

(i)

{-3,3,9}
(ii)

{6,-8,2,-1,0}
(iii)

{2,-1}
(iv)

{8,-1,5,1}
(v)

{-4}

Question 4

4.

Which of the following is a null set?

(i)

{5,2,-8,-9,-6}
(ii)

{-1,-9,-8,9}
(iii)

{-9,4,-8}
(iv)

{1,-4}
(v)

{}

Question 5

5.

Which of the following is an infinite set?

(i)

{-7,1,4}
(ii)

{6,-4}
(iii)

{0,1,2,3,4,5,6,...}
(iv)

{-3}
(v)

{}

Question 6

6.

Which of the following elements belong to the set {5,1,6,3,9}?

(i)

15
(ii)

14
(iii)

9
(iv)

(-2)
(v)

(-1)

Question 7

7.

Which of the following is 'union' symbol?

(i)

∉
(ii)

⊅
(iii)

⊃
(iv)

⊇
(v)

∪

Question 8

8.

Which of the following is 'intersection' symbol?

(i)

⊇
(ii)

∈
(iii)

∉
(iv)

∩
(v)

⊄

Question 9

9.

Which of the following is 'belongs to' symbol?

(i)

∩
(ii)

∪
(iii)

⊅
(iv)

∈
(v)

⊆

Question 10

10.

Which of the following is 'does not belongs to' symbol?

(i)

⊃
(ii)

∪
(iii)

⊂
(iv)

⊅
(v)

∉

Question 11

11.

Which of the following is 'null set' symbol?

(i)

⊄
(ii)

∅
(iii)

⊂
(iv)

⊆
(v)

⊇

Question 12

12.

Which of the following elements does not belong to the set {1,9,7,3,4}?

(i)

7
(ii)

9
(iii)

3
(iv)

8
(v)

1

Question 13

13.

Which of the following elements does not belong to the set {v,h,o,t,l}

(i)

l
(ii)

h
(iii)

y
(iv)

t
(v)

o

Question 14

14.

Which of the following is an empty set?

(i)

{empty}
(ii)

{o}
(iii)

{∅}
(iv)

{0}
(v)

{}

Question 15

15.

Which of the following is a null set?

(i)

{o}
(ii)

{∅}
(iii)

{0}
(iv)

{empty}
(v)

∅

Question 16

16.

Which of the following are null sets?

a)

{empty}

b)

{}

c)

{3,8,5}

d)

∅

e)

{∅}

(i)

{c,d,b}
(ii)

{a,b}
(iii)

{b,d}
(iv)

{c,d}
(v)

{e,a,b}

Question 17

17.

Which of the following sets have same cardinality?

a)

{-2,3,-6,1,-4,6,7}

b)

{-5,-4,-3,-8,9,0,3,2}

c)

{4,7,2,6,1,8}

d)

{-9,-1,-6,3,-4,-7,4}

e)

{-6,-9,7,-5,-7,-1,6,-2,-4}

(i)

{b,a}
(ii)

{e,b,a}
(iii)

{c,d}
(iv)

{c,d,a}
(v)

{a,d}

Question 18

18.

What is the cardinality of an empty set?

(i)

4
(ii)

0
(iii)

6
(iv)

2

Question 19

19.

Which of the following symbols represent the set of Whole numbers ?

(i)

N
(ii)

Z
(iii)

Q'
(iv)

W
(v)

R

Question 20

20.

Which of the following symbols represent the set of Integers ?

(i)

N
(ii)

Z
(iii)

Q
(iv)

W
(v)

R

Question 21

21.

Which of the following are disjoint sets?

(i)
{15,4,6}

,

{19,9,12}
(ii)
{15,5,4,18,6,3}

,

{5,19,18,9,12,3}
(iii)
{15,5,4,18,6,3}

,

{}
(iv)
{}

,

{15,5,4,18,6,3}
(v)
{15,5,4,18,6,3}

,

{15,5,4,18,6,3}

Question 22

22.

Which of the following are overlapping sets?

(i)
{9,13,16,8,15,1}

,

{}
(ii)
{13,16,8}

,

{18,3,7,11,2}
(iii)
{13,16,8}

,

{18,3,7,11,2,9,1,15}
(iv)
{9,13,16,8,15,1}

,

{18,3,7,11,2}
(v)
{9,13,16,8,15,1}

,

{18,3,7,11,2,9,1,15}

Assignment Key