Sets Test

Result

Sets Test - 4

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

U= set of all teachers in a school ,

B= Set of all Mathematics teachers in a school ,
So B’=?

A
set of all non science teachers

B
Set of all science teachers

C
set of all language teachers

D
set of all non mathematics teachers

Solution

set of all non mathematics teachers

B’={x | x∈ U and x ∉B}= set of all non mathematics teachers.
Question 2
1 / -0

For the set of all natural numbers the universal set can be

A
Set of all prime numbers

B
Set of all integers

C
Set of all even numbers

D
Set of all odd numbers

Solution

The universal set is a super set of all given sets under consideration.

Here, the set of all natural numbers is a subset of set of all integers.
Question 3
1 / -0

In a class of 40 students 14 take physics and 29 take chemistry. If 5 students take both, how many students take neither of the subjects?

A
14

B
38

C
5

D
2

Solution

n (P): Number of students who study physics = 14

n (P^∩Q): Number of students who study both physics and chemistry = 5

n (Q): Number of students who study chemistry = 29

n (PUQ): No of students who study at least one of the subject

n(PUQ) = n (P) + n(Q) - n (P∩Q)

= 14 + 29 -5 = 38

No of students who study neither of the subjects

= Total number of students - No of students who study at least one subject

= 40 -38 = 2
Question 4
1 / -0

From the sets given below, select equal sets : ,

A = { 2, 4, 8, 12}, B = { 1, 2, 3, 4},

C = { 4, 8, 12, 14}, D = { 3, 1, 4, 2}

A
B and C

B
B and D

C
A and C

D
A and B

Solution

A and C are unequal as they do not contain same elements. B and D are equal as they contain same elements, namely, 1, 2, 3 and 4.
Question 5
1 / -0

If A = {1, 4, 9, 16} then n (A) = ____

A
2

B
1

C
3

D
4

Solution

n (A): No of elements in A = 4
Question 6
1 / -0

The set builder form of the set A = {1, 8, 27, 64} is

A
A = {x : x is cube of a natural number less than 5}

B
A = {x : x is square of a natural number less than 8}

C
A = {x : x is sum of any two consecutive odd natural numbers less than 10}

D
A = {x : x is a multiple of 4 less than 64}

Solution

1 = 1³

8 = 2³

27 = 3³

64 = 4³

So set A has cubes of all natural numbers less than 5.

Option A is correct.
Question 7
1 / -0

The roaster form of the set B = {x : x is a vowel of English alphabet }

A
B = {a, e, y, o, u}

B
B = {a, e, i, o, u}

C
B = {a, e, w, y, u}

D
B = { a, i, y, o, u}

Solution

a, e, i, o and u are the vowels in English alphabet.

So B = {a, e, i, o, u}

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Sets Test - 4

Result

Sets Test - 4

Score

-

Rank

-

SHARING IS CARING

Question 1

set of all non science teachers

Set of all science teachers

set of all language teachers

set of all non mathematics teachers

Solution

Question 2

Set of all prime numbers

Set of all integers

Set of all even numbers

Set of all odd numbers

Solution

Question 3

14

38

5

2

Solution

Question 4

B and C

B and D

A and C

A and B

Solution

Question 5

2

1

3

4

Solution

Question 6

A = {x : x is cube of a natural number less than 5}

A = {x : x is square of a natural number less than 8}

A = {x : x is sum of any two consecutive odd natural numbers less than 10}

A = {x : x is a multiple of 4 less than 64}

Solution

Question 7

B = {a, e, y, o, u}

B = {a, e, i, o, u}

B = {a, e, w, y, u}

B = { a, i, y, o, u}

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.