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9th Standard
TN 9th Tamil உள்ளத்தின் சீர் -கற்கண்டு (இலக்கணம்) - தொடர் இலக்கணம், ஆகுபெயர் Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உள்ளத்தின் சீர் -விரிவானம் (துணைப்பாடம்) - தாய்மைக்கு வறட்சி இல்லை! Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உள்ளத்தின் சீர் -கவிதை பேழை (செய்யுள்) - மார்கழி பெருவிழா Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உயிருக்கு வேர்-இலக்கணம் - பகுபத உறுப்பிலக்கணம் Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil அமுதென்று பேர் - இலக்கணம்-எழுத்து -அளபெடை Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil அமுதென்று பேர்-துணைப்பாடம் - ஆறாம்திணை Important Questions And Answers Study Material - QB365 Set A
Published on: 01/08/2018
From the chapter Set Language, some of the important questions are covered in this question paper. The questions are covers from the book back and the previous year questions.
Download Tamil Nadu 9th Standard Maths question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Maths Test1.
If P = {m, n} and Q = {m, i, j}, represent P and Q in Venn diagram and find P∪Q.
2.
If A = {1, 2, 6} and B = {2, 3, 4} , find A∪B.
3.
If U = {c, d, e, f, g, h, i, j} and A = { c, d, g, j} , find A′.
4.
Find the number of subsets and the number of proper subsets of a set X = {a, b, c, x, y, z}.
5.
Insert the appropriate symbol \(\subseteq \) or \(\nsubseteq \) in each blank to make a true statement.
{10, 20, 30} ____ {10, 20, 30, 40}
6.
The shade region with adjoint diagram represents ___________
A - B
B - A
A'
B'
7.
The number of elements of the set {x : x ∈ Z, x2 = I} is ________
0
1
2
3
8.
The set {x: x ∈ A, x ∈ B, x ∉ A ∩ B} is___________.
A ∩ B
A U B
A - B
A Δ B
9.
The set of (A U B) - (A ก B) is ____________
(AUB)'
AΔB
(A∩B)'
A'UB'
10.
The set (A - B) U(B - A) is ___________
AΔB
AUB
A∩B
A'UB'
11.
Number of subsets in set A = {1,2,3} is ________
3
6
8
9
12.
A = {set of odd natural numbers}, B = {set of even natural numbers}, then A and B are ___________
equal set
equivalent sets
overlapping sets
disjoint sets
13.
In a class of 50 boys, 35 boys play Carrom and 20 boys play Chess then the number of boys play both games is________.
5
30
15
10
14.
From the adjacent diagram n[P(AΔB)] is ________.
8
16
32
64
15.
The shaded region in the adjacent diagram represents ______________
(A∪B)′
(A∩B)′
A′∩B′
A∩B
16.
Which of the following is correct?
∅ ⊆ {a, b}
∅ ∈ {a, b}
{a} ∈ {a, b}
a ⊆ {a, b}
17.
If A = {x, y, z} then the number of non-empty subsets of A is ________.
8
5
6
7
18.
If B ⊆ A then n(A∩B) is –––––––––.
n(A – B)
n(B)
n(B – A)
n(A)
19.
If U = {x | x ∈ N, x < 10} and A = {x | x ∈ N, 2 ≤ x < 6} then (A′)′ is –––––––––.
{1, 6, 7, 8, 9}
{1, 2, 3, 4}
{2, 3, 4, 5}
{ }
20.
The set P = {x | x ∈ Z , –1 < x < 1} is a –––––––––.
Singleton set
Power set
Null set
Subset
21.
In a class there are 40 students. 26 have opted for Mathematics and 24 have opted for Science. How many student have opted for Mathematics and Science.
22.
From the venn-diagram, list the following:
(i) A
(ii) B
(iii) A ∩ B
(iv) AU B
(v) A-B
(vi) B-A
(vii) (A - B) ∩ (B - A)
23.
Given that A = {1,3,5,7} B = {1,2,4,6,8}. Find
(i) AΔB and
(ii) BΔA
24.
Insert the appropriate symbol ∈ (belongs to) or ∉ (does not belong to) in the blanks.
25.
Out of 500 car owners investigated, 400 owned car A and 200 owned car B, 50 owned both A and B cars. Is this data correct?
1.
Given P = {m, n} and Q = {m, i, j}
From the diagram,
P∪Q = {n, m, i, j}.
2.
Given A = {1, 2, 6}, B = {2, 3, 4}
A∪B = {1,2,3, 4,6}.
3.
U = {c, d, e, f, g, h, i, j}, A = {c, d, g, j}
A′ = {e, f, h, i}
4.
Given X = {a, b, c, x, y, z}.Then, n(X) = 6
The number of subsets = n[P(X)] = 26 = 64
The number of proper subsets = n[P(X)]-1 = 26 – 1
= 64 – 1 = 63.
5.
{10, 20, 30} ____ {10, 20, 30, 40}
Since every element of {10, 20, 30} is also an element of {10, 20, 30, 40}, we get {10, 20, 30} \(\subseteq \) {10, 20, 30, 40}.
6.
(c)
A'
7.
(c)
2
8.
(d)
A Δ B
9.
(b)
AΔB
10.
(a)
AΔB
11.
(c)
8
12.
(d)
disjoint sets
13.
(a)
5
14.
(c)
32
15.
(b)
(A∩B)′
16.
(a)
∅ ⊆ {a, b}
17.
(d)
7
18.
(b)
n(B)
19.
(c)
{2, 3, 4, 5}
20.
(a)
Singleton set
21.
Let M be the set of students opting for Mathematics.
Let S be the set of students opting for Science.
n (M U S) = 40, n (M) = 26, n (S) = 24
n (M U S) = n (M) + n (S) - n (M n S)
40 = 26 + 24 - n (M n S)
n (M n S) = 26 + 24 - 40
= 50 - 40 = 10
∴ Number of students opted for Mathematics and Science = 10
22.
(i) A = {1,2,5,6,7}
(ii) B = {3,4,5,6}
(iii) A ∩ B = {5,6}
(iv) A U B = {1,2,3,4,5,6,7}
(v) A-B = {1,2,7}
(vi) B - A = {3,4}
(vii) (A-B) ∩ (B -A) = { }.
23.
(i) A = {1,3,5,7} ; B = {1,2,4,6,8}
A-B = {1,3,:5,7} - {1,2,4,6,8}
= {3,5,7}
B -A = {1,2,4,6,S} - {1,3,5,7}
= {2,4,6,8}
AΔB = (A - B)U(B-A)
= {3,5,7} U {2,4,6,8}
= {2,3,4,5,6,7,8}.
(ii) BM = (B-A) U (A-B)
= {2,4,6,8} u {3,5,7}
= {2,3,4,516,7,S}
24.
25.
Let A be the set of people owned car A
Let B be the set of people owned car B
n( A) = 400, n(B) = 200, n(A \(\cap\) B) = 50
n(A \(\cup\) B) = 500 .........(1)
n(A) + n(B) - n(A \(\cap\) B) = 400 + 200 - 50
= 600 - 50
= 550 ...........(2)
From (1) and (2) we get
\(n(A\cup B)\ne n(A) +n(B)-n(A\cap B)\)
\(\therefore\) The given data is incorrect.
9th Standard Syllabus & Materials
9th Standard
TN 9th Tamil உள்ளத்தின் சீர் - திருக்குறள் Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உள்ளத்தின் சீர் - மணிமேகலை Important Questions And Answers Study Material - QB365 Set A
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TN 9th Tamil உள்ளத்தின் சீர் - ஏறு தழுவுதல் Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உயிருக்கு வேர் - தண்ணீர் Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 9th Standard Subjects
Tamilnadu Stateboard Standards
