EduSahara™ Worksheet

Question 1

1.

Find the cardinality of A = {9,-6,6,-3}

(i)

6
(ii)

2
(iii)

3
(iv)

5
(v)

4

Question 2

2.

If A = {-3,4,-2,9,2,5,-9}, then n(A) = ?

(i)

5
(ii)

6
(iii)

9
(iv)

7
(v)

8

Question 3

3.

Which of the following is a singleton set?

(i)

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

{5}
(iii)

{2,9,5,-5,-4}
(iv)

{6,2,8,5}
(v)

{-1,-4}

Question 4

4.

Which of the following is a null set?

(i)

{-7,3}
(ii)

{0,-5,-7,9}
(iii)

{}
(iv)

{9,6,-3}
(v)

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

Question 5

5.

Which of the following is an infinite set?

(i)

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

{3}
(iii)

{0,1,2,3,4,5,6,7,8,...}
(iv)

{5,-1}
(v)

{}

Question 6

6.

Which of the following elements belong to the set {10,2,1,5,6}?

(i)

2
(ii)

(-5)
(iii)

12
(iv)

13
(v)

(-4)

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 {9,4,5,1,10}?

(i)

1
(ii)

10
(iii)

5
(iv)

9
(v)

3

Question 13

13.

Which of the following elements does not belong to the set {y,k,g,b,z}

(i)

k
(ii)

b
(iii)

m
(iv)

z
(v)

y

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)

{∅}
(iv)

{0}
(v)

{empty}

Question 16

16.

Which of the following are null sets?

a)

{7,2,5}

b)

{∅}

c)

{empty}

d)

{}

e)

∅

(i)

{c,a,d}
(ii)

{b,e}
(iii)

{a,d}
(iv)

{b,e,d}
(v)

{d,e}

Question 17

17.

Which of the following sets have same cardinality?

a)

{3,8,9,-6,-1}

b)

{-9,-5,1,-2,5,8}

c)

{6,-8,-3}

d)

{3,6,-7,9}

e)

{-5,9,-4,8}

(i)

{d,e}
(ii)

{b,e,d}
(iii)

{c,a,d}
(iv)

{a,d}
(v)

{b,e}

Question 18

18.

What is the cardinality of an empty set?

(i)

3
(ii)

1
(iii)

0
(iv)

5
(v)

(-1)

Question 19

19.

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

(i)

W
(ii)

R
(iii)

Q
(iv)

N
(v)

Z

Question 20

20.

Which of the following symbols represent the set of Integers ?

(i)

Q
(ii)

R
(iii)

W
(iv)

Q'
(v)

Z

Question 21

21.

Which of the following are disjoint sets?

(i)
{6,12,17,2,4,1}

,

{6,12,17,2,4,1}
(ii)
{6,12,17,2,4,1}

,

{4,16,1,10,15}
(iii)
{6,12,17,2}

,

{16,1,10,15}
(iv)
{}

,

{6,12,17,2,4,1}
(v)
{6,12,17,2,4,1}

,

{}

Question 22

22.

Which of the following are overlapping sets?

(i)
{19,11,20,14,4,13}

,

{7,9,5}
(ii)
{19,11,20}

,

{7,9,5}
(iii)
{19,11,20}

,

{7,9,4,14,5,13}
(iv)
{19,11,20,14,4,13}

,

{7,9,4,14,5,13}
(v)
{19,11,20,14,4,13}

,

{}

Assignment Key