EduSahara™ Worksheet

Question 1

1.

Find the cardinality of A = {7,-6,-9,2,6}

(i)

4
(ii)

2
(iii)

6
(iv)

7
(v)

5

Question 2

2.

If A = {-3,-6,-1,-9,7,-7}, then n(A) = ?

(i)

8
(ii)

5
(iii)

4
(iv)

7
(v)

6

Question 3

3.

Which of the following is a singleton set?

(i)

{0,-3,3,1}
(ii)

{3}
(iii)

{9,-4,0}
(iv)

{1,-7,-6,-4,6}
(v)

{-4,2}

Question 4

4.

Which of the following is a null set?

(i)

{-3,0}
(ii)

{-1,-2,-3,7,0}
(iii)

{-8,0,-2}
(iv)

{5,-3,6,-1}
(v)

{}

Question 5

5.

Which of the following is an infinite set?

(i)

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

{}
(iii)

{-6}
(iv)

{-1,-2,-5}
(v)

{8,5}

Question 6

6.

Which of the following elements belong to the set {6,2,7,1,10}?

(i)

7
(ii)

13
(iii)

(-2)
(iv)

14
(v)

(-3)

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 {9,4,7,10,1}?

(i)

7
(ii)

10
(iii)

4
(iv)

5
(v)

9

Question 13

13.

Which of the following elements does not belong to the set {c,p,m,y,v}

(i)

m
(ii)

f
(iii)

v
(iv)

p
(v)

y

Question 14

14.

Which of the following is an empty set?

(i)

{0}
(ii)

{∅}
(iii)

{empty}
(iv)

{}
(v)

{o}

Question 15

15.

Which of the following is a null set?

(i)

{o}
(ii)

{∅}
(iii)

{0}
(iv)

∅
(v)

{empty}

Question 16

16.

Which of the following are null sets?

a)

{empty}

b)

{7,5,8}

c)

∅

d)

{∅}

e)

{}

(i)

{a,c}
(ii)

{b,e}
(iii)

{c,e}
(iv)

{d,a,c}
(v)

{b,e,c}

Question 17

17.

Which of the following sets have same cardinality?

a)

{7,1,8,2,-9}

b)

{6,-1}

c)

{-4,9,7,5}

d)

{3,8,1}

e)

{-1,-6,5}

(i)

{d,e}
(ii)

{b,e}
(iii)

{c,a,d}
(iv)

{b,e,d}
(v)

{a,d}

Question 18

18.

What is the cardinality of an empty set?

(i)

4
(ii)

3
(iii)

6
(iv)

7
(v)

0

Question 19

19.

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

(i)

Q'
(ii)

N
(iii)

R
(iv)

W
(v)

Q

Question 20

20.

Which of the following symbols represent the set of Integers ?

(i)

Z
(ii)

Q'
(iii)

Q
(iv)

R
(v)

N

Question 21

21.

Which of the following are disjoint sets?

(i)
{1,5,20,14,9}

,

{1,5,20,14,9}
(ii)
{}

,

{1,5,20,14,9}
(iii)
{1,5,9}

,

{11,19,3}
(iv)
{1,5,20,14,9}

,

{20,14,11,19,3,9}
(v)
{1,5,20,14,9}

,

{}

Question 22

22.

Which of the following are overlapping sets?

(i)
{14,7,12,8,2,11}

,

{3,13,19,15}
(ii)
{7,12,8}

,

{3,13,19,15}
(iii)
{7,12,8}

,

{3,13,2,19,15,14,11}
(iv)
{14,7,12,8,2,11}

,

{}
(v)
{14,7,12,8,2,11}

,

{3,13,2,19,15,14,11}

Assignment Key