11th Standard Syllabus & Materials
11th Standard
TN 11th Tamil இயற்கை வேளாண்மை,சுற்றுச்சூழல் -செய்யுள் - மனோன்மணீயம் Important Questions And Answers Study Material - QB365 Set A
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TN 11th Tamil மொழி கலை -செய்யுள் - ஒவ்வொரு புல்லையும் Important Questions And Answers Study Material - QB365 Set A
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TN 11th Tamil பீடு பெற நில் - துணைப்பாடம் - வாடிவாசல் Important Questions And Answers Study Material - QB365 Set A
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Published on: 14/03/2020
11th Standard Business Mathematics English Medium All Chapter Book Back and Creative One Marks Questions 2020
Download Tamil Nadu 11th Standard Business Maths and Statistics 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 Business Maths and Statistics Test
1.
The two events A and B are mutually exclusive if _________.
\(P\left( A\cap B \right) =0\)
\(P\left( A\cap B \right) =1\)
\(P\left( A\cup B \right) =0\)
\(P\left( AUB \right) =1\)
2.
If median = 45 and its coefficient is 0.25, then the mean deviation about median is _________.
11.25
180
0.0056
45
3.
If two variables moves in decreasing direction then the correlation is ________.
positive
negative
perfect negative
no correlation
4.
The regression coefficient of X on Y ________.
bxy = \(\frac { N\Sigma dxdy-(\Sigma dx)(\Sigma dy) }{ N\Sigma dy^{ 2 }-(\Sigma dy)^{ 2 } } \)
byx = \(\frac { N\Sigma dxdy-(\Sigma dx)(\Sigma dy) }{ N\Sigma dy^{ 2 }-(\Sigma dy)^{ 2 } } \)
bxy = \(\frac { N\Sigma dxdy-(\Sigma dx)(\Sigma dy) }{ N\Sigma dx^{ 2 }-(\Sigma dx)^{ 2 } } \)
by =\(\frac { N\Sigma xy-(\Sigma x)(\Sigma y) }{ \sqrt { N\Sigma { x }^{ 2 }-(\Sigma x)^{ 2 }\times \sqrt { N\Sigma y^{ 2 }-(\Sigma y)^{ 2 } } } } \)
5.
The present value of the perpetual annuity of Rs. 2000 paid monthly at 10 % compound interest is _______.
Rs. 2,40,000
Rs. 6,00,000
Rs. 20,40,000
Rs. 2,00,400
6.
A person brought 100 shares of 9% stock of face value Rs. 100, at a discount of 10%, then the stock purchased is _______.
Rs. 9000
Rs. 6000
Rs. 5000
Rs. 4000
7.
The maximum value of f(x) = sinx is ________.
1
\(\frac { \sqrt { 3 } }{ 2 } \)
\(\frac { 1 }{ \sqrt { 2 } } \)
\(-\frac { 1 }{ \sqrt { 2 } } \)
8.
Average fixed cost of the cost function C(x) = 2x3 +5x2 - 14x +21 is _______.
\(\frac { 2 }{ 3 } \)
\(\frac { 5}{ x } \)
\(\frac { 14 }{ x } \)
\(\frac { 21 }{ x } \)
9.
The minimum value of the objective function Z = x + 3y subject to the constraints 2x + y ≤ 20, x + 2y ≤ 20, x > 0 and y > 0 is ______.
10
20
0
5
10.
One of the conditions for the activity (i, j) to lie on the critical path is_______.
Ej - Ei = Lj - Li = tij
Ei - Ej = Lj - Li = tij
Ej - Ei = Li - Lj = tij
Ej - Ei = Lj - Li ≠ tij
11.
\(\lim _{ x\rightarrow \infty }{ \frac { \tan { \theta } }{ \theta } } =\)________.
1
\(\infty\)
\(-\infty\)
\(\theta\)
12.
The minimum value of the function f(x) = |x| is _______.
0
-1
+1
\(-\infty \)
13.
\(\sec^{-1}\frac{2}{3}+cosec^{-1}\frac{2}{3}=\) ______.
\(\frac{-\pi}{2}\)
\(\frac{\pi}{2}\)
\(\pi\)
\(-\pi\)
14.
The degree measure of \(\frac{\pi}{8}\) is ______.
20o60'
22o30'
20o60'
20o30'
15.
If kx2 + 3xy - 2y2 = 0 represent a pair of lines which are perpendicular then k is equal to _______.
1/2
-1/2
2
-2
16.
17.
The possible outcomes when a coin is tossed five times _________.
25
52
10
\(\frac { 5 }{ 2 } \)
18.
If nC3 = nC2, then the value of nC4 is _______.
2
3
4
5
19.
If \(\begin{vmatrix} 4 & 3 \\ 3 & 1 \end{vmatrix}=-5\) then value of \(\begin{vmatrix} 20 & 15 \\ 15 & 5 \end{vmatrix}\) is ________.
-5
-125
-25
0
20.
If A and B are non-singular matrix then, which of the following is incorrect?
A2 = I implies A-1 = A
I-1 = I
If AX = B, then X = B-1 A
If A is square matrix of order 3 then |adj A|= |A|2
1.
(b)
\(P\left( A\cap B \right) =1\)
2.
Mean deviation about median = co-eficient of mean deviation about median x Median
= 0.25 x 45
= 11.25
3.
(a)
positive
4.
(a)
bxy = \(\frac { N\Sigma dxdy-(\Sigma dx)(\Sigma dy) }{ N\Sigma dy^{ 2 }-(\Sigma dy)^{ 2 } } \)
5.
\(P =\frac{\frac{a}{i}}{k} \)
\(=\frac{\frac{2000}{0.1}}{12}=2,40,000\)
6.
If F.V = 100, Investment = 90
FV 10,000,
Investment \(= \frac{ 90 \times 10,000}{100} = 9000\)
7.
(a)
1
8.
(d)
\(\frac { 21 }{ x } \)
9.
| 2x | + | y | = | 20 | x | + | y | = | 20 | |
| x | 0 | 10 | x | 0 | 20 | |||||
| y | 20 | 0 | y | 20 | 0 |
| Corner points | Z = x + 3y |
| (0, 0) | 0 |
| (0, 20) | 60 |
| (10, 0) | 10 |
10.
(a)
Ej - Ei = Lj - Li = tij
11.
(a)
1
12.
(a)
0
13.
(b)
\(\frac{\pi}{2}\)
14.
\(\frac{\pi}{8}=\frac{180^{\circ}}{8}=22 \frac{1}{2}^{\circ}=22^{\circ} 30^{\prime}\)
15.
\(a+b=0 \Rightarrow k-2=0\)
16.
(c)
17.
(a)
25
18.
x + y = n
3 + 2 = 5 = n
nC4 = 5C4 = 5C1 = 5
19.
\(\left|\begin{array}{cc} 20 & 15 \\ 15 & 5 \end{array}\right|=5 \times 5\left|\begin{array}{ll} 4 & 3 \\ 3 & 1 \end{array}\right|\)
\(=5 \times 5 \times-5\)
\(=-125\)
20.
(Since \(\mathrm{X}=\mathrm{A}^{-1} \mathrm{~B}\) is the correct answer)
11th Standard Syllabus & Materials
11th Standard
TN 11th Tamil பீடு பெற நில் - செய்யுள் - காவடிச்சிந்து Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil பீடு பெற நில் - உரைநடை - மலை இடப்பெயர்கள் : ஓர் ஆய்வு Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil மாமழை போற்றுதும் - துணைப்பாடம் - யானை டாக்டர் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil மாமழை போற்றுதும் - செய்யுள் - ஐங்குறுநூறு Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 11th Standard Subjects
Maths
Commerce
Economics
Biology
Business Maths and Statistics
Accountancy
Computer Science
Physics
Chemistry
Maths
Biology
Economics
Physics
Chemistry
History
Business Maths and Statistics
Computer Science
Accountancy
Computer Applications
History
Computer Technology
Commerce
Computer Applications
Computer Technology
Tamil
English
French
Tamilnadu Stateboard Standards
