EduSahara™ Worksheet

Question 1

1.

Find the cardinality of A = {3,-2,-7,6,5,8,-8,2}

(i)

9
(ii)

10
(iii)

6
(iv)

7
(v)

8

Question 2

2.

If A = {6,1,-1,-8,8,0,-2}, then n(A) = ?

(i)

7
(ii)

4
(iii)

10
(iv)

6
(v)

8

Question 3

3.

Which of the following is a singleton set?

(i)

{-3,1,2,-9,4}
(ii)

{8,-4,-8,6}
(iii)

{9,3,0}
(iv)

{2}
(v)

{-6,-8}

Question 4

4.

Which of the following is a null set?

(i)

{2,-9,-4,8}
(ii)

{-8,1,5}
(iii)

{}
(iv)

{-2,8,0,-7,4}
(v)

{-7,3}

Question 5

5.

Which of the following is an infinite set?

(i)

{-7}
(ii)

{}
(iii)

{2,-9}
(iv)

{0,1,2,...}
(v)

{5,-8,9}

Question 6

6.

Which of the following elements belong to the set {2,7,10,6,8}?

(i)

16
(ii)

(-1)
(iii)

0
(iv)

7
(v)

15

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 {5,3,8,4,7}?

(i)

1
(ii)

4
(iii)

3
(iv)

7
(v)

5

Question 13

13.

Which of the following elements does not belong to the set {w,i,g,z,f}

(i)

l
(ii)

z
(iii)

g
(iv)

w
(v)

f

Question 14

14.

Which of the following is an empty set?

(i)

{∅}
(ii)

{}
(iii)

{o}
(iv)

{empty}
(v)

{0}

Question 15

15.

Which of the following is a null set?

(i)

{empty}
(ii)

∅
(iii)

{o}
(iv)

{0}
(v)

{∅}

Question 16

16.

Which of the following are null sets?

a)

{∅}

b)

∅

c)

{6,1,7}

d)

{}

e)

{empty}

(i)

{b,d}
(ii)

{c,d,b}
(iii)

{e,a,b}
(iv)

{a,b}
(v)

{c,d}

Question 17

17.

Which of the following sets have same cardinality?

a)

{3,8,-1,1,0}

b)

{3,-2,5}

c)

{2,0,5,-3}

d)

{-1,7,-5,-8,5,8}

e)

{-5,-1,-3,1}

(i)

{c,e}
(ii)

{d,a,c}
(iii)

{a,c}
(iv)

{b,e}
(v)

{b,e,c}

Question 18

18.

What is the cardinality of an empty set?

(i)

0
(ii)

6
(iii)

4
(iv)

2
(v)

7

Question 19

19.

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

(i)

W
(ii)

N
(iii)

Q
(iv)

Z
(v)

Q'

Question 20

20.

Which of the following symbols represent the set of Integers ?

(i)

W
(ii)

Q'
(iii)

Q
(iv)

Z
(v)

N

Question 21

21.

Which of the following are disjoint sets?

(i)
{}

,

{13,5,12,2,1,9}
(ii)
{13,5,12,2,1,9}

,

{}
(iii)
{13,5,12,2,1,9}

,

{1,16,5,11,2,9}
(iv)
{13,12}

,

{16,11}
(v)
{13,5,12,2,1,9}

,

{13,5,12,2,1,9}

Question 22

22.

Which of the following are overlapping sets?

(i)
{17,9,18}

,

{8,20,19}
(ii)
{3,17,9,1,18,7}

,

{8,20,3,19,1,7}
(iii)
{17,9,18}

,

{8,20,3,19,1,7}
(iv)
{3,17,9,1,18,7}

,

{8,20,19}
(v)
{3,17,9,1,18,7}

,

{}

Assignment Key