Tamil Nadu Board of Secondary EducationHSC Arts Class 11

# Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Economics Answers Guide chapter 12 - Mathematical Methods for Economics [Latest edition]

#### Chapters ## Solutions for Chapter 12: Mathematical Methods for Economics

Below listed, you can find solutions for Chapter 12 of Tamil Nadu Board of Secondary Education Tamil Nadu Board Samacheer Kalvi for Class 11th Economics Answers Guide.

Model Questions - Part AModel Questions - Part BModel Questions - Part CModel Questions - Part D
Model Questions - Part A [Pages 270 - 271]

### Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Economics Answers Guide Chapter 12 Mathematical Methods for Economics Model Questions - Part A [Pages 270 - 271]

#### Multiple Choice Questions

Model Questions - Part A | Q 1 | Page 270

Mathematical Economics is the integration of

• Mathematics and Economics

• Economics and Statistics

• Economics and Equations

• Graphs and Economics

Model Questions - Part A | Q 2 | Page 270

The construction of demand line or supply line is the result of using

• Matrices

• Calculus

• Algebra

• Analytical Geometry

Model Questions - Part A | Q 3 | Page 270

The first person used the mathematics in Economics is

• Sir William Petty

• Giovanni Ceva

• Irving Fisher

Model Questions - Part A | Q 4 | Page 270

Function with single independent variable is known as

• Multivariate Function

• Bivariate Function

• Univariate Function

• Polynomial Function

Model Questions - Part A | Q 5 | Page 270

A statement of equality between two quantities is called

• Inequality

• Equality

• Equations

• Functions

Model Questions - Part A | Q 6 | Page 270

An incremental change independent variable with respect to change in the independent variable is known as

• Slope

• Intercept

• Variant

• Constant

Model Questions - Part A | Q 7 | Page 270

(y - y1 ) = m(x - x1 ) gives the

• Slope

• Straight line

• Constant

• Curve

Model Questions - Part A | Q 8 | Page 270

Suppose D = 50 - 5P. When D is zero then

• P is 10

• P is 20

• P is 5

• P is -10

Model Questions - Part A | Q 9 | Page 270

Suppose D = 150 - 50P. Then, the slope is

• -5

• 50

• 5

• -50

Model Questions - Part A | Q 10 | Page 270

Suppose determinant of a matrix Δ = 0, then the solution

• Exists

• Does not exist

• is infinity

• is zero

Model Questions - Part A | Q 11 | Page 271

State of rest is a point termed as

• Equilibrium

• Non-Equilibrium

• Minimum Point

• Maximum Point

Model Questions - Part A | Q 12 | Page 271

Differentiation of constant term gives

• one

• zero

• infinity

• non-infinity

Model Questions - Part A | Q 13 | Page 271

Differentiation of xn is

• nx(n-1)

• n x (n+1)

• zero

• one

Model Questions - Part A | Q 14 | Page 271

Fixed Cost is the ______ term in cost function represented in mathematical form.

• Middle

• Price

• Quantity

• Constant

Model Questions - Part A | Q 15 | Page 271

The first differentiation of Total Revenue function gives

• Average Revenue

• Profit

• Marginal Revenue

• Zero

Model Questions - Part A | Q 16 | Page 271

The elasticity of demand is the ratio of

• Marginal demand function and Revenue function

• Marginal demand function to Average demand function

• Fixed and variable revenues

• Marginal Demand function and Total demand function

Model Questions - Part A | Q 17 | Page 271

If x+y = 5 and x-y= 3 then, Value of x

• 4

• 3

• 16

• 8

Model Questions - Part A | Q 18 | Page 271

Integration is the reverse process of

• Difference

• Mixing

• Amalgamation

• Differentiation

Model Questions - Part A | Q 19 | Page 271

Data processing is done by

• PC alone

• Calculator alone

• Both PC and Calculator

• Pen drive

Model Questions - Part A | Q 20 | Page 271

The command Ctrl + M is applied for

• Saving

• Copying

• getting new slide

• deleting a slide

Model Questions - Part B [Page 272]

### Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Economics Answers Guide Chapter 12 Mathematical Methods for Economics Model Questions - Part B [Page 272]

#### Answer the following questions in one or two sentences

Model Questions - Part B | Q 1 | Page 272

If 62 = 34 + 4x what is x?

Model Questions - Part B | Q 2 | Page 272

Given the demand function q = 150 − 3p, derive a function for MR.

Model Questions - Part B | Q 3 | Page 272

Find the average cost function where TC = 60 + 10x +15x2

Model Questions - Part B | Q 5 | Page 272

Suppose the price p and quantity q of a commodity are related by the equation q = 30 - 4p - p2 find

1. ed at p = 2
2. MR
Model Questions - Part B | Q 6 | Page 272

What is the formula for the elasticity of supply if you know the supply function?

Model Questions - Part B | Q 7 | Page 272

What are the main menus of MS Word?

Model Questions - Part C [Page 272]

### Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Economics Answers Guide Chapter 12 Mathematical Methods for Economics Model Questions - Part C [Page 272]

#### Answer the following questions in one paragraph

Model Questions - Part C | Q 1 | Page 272

Illustrate the uses of Mathematical Methodsm in Economics.

Model Questions - Part C | Q 2 | Page 272

Solve for x quantity demanded if 16x − 4 = 68 + 7x.

Model Questions - Part C | Q 3 | Page 272

A firm has the revenue function R = 600q - 0.03q2 and the cost function is C = 150q + 60,000, where q is the number of units produced. Find AR, AC, MR, and MC.

Model Questions - Part C | Q 4 | Page 272

Solve the following linear equations by using Cramer’s rule.

x1 - x2 + x3 = 2: x1 + x2 - x3 = 0 : -x1 - x2 - x3 = -6

Model Questions - Part C | Q 5 | Page 272

If a firm faces the total cost function TC = 5+ x2 where x is output, what is TC when x is 10?

Model Questions - Part C | Q 6 | Page 272

If TC = 2.5q3 − 13q2 + 50q + 12 derive the MC function and AC function.

Model Questions - Part C | Q 7 | Page 272

What are the steps involved in executing an MS Excel Sheet?

Model Questions - Part D [Page 273]

### Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Economics Answers Guide Chapter 12 Mathematical Methods for Economics Model Questions - Part D [Page 273]

Model Questions - Part D | Q 1 | Page 273

A Research scholar researching the market for fresh cow milk assumes that Qt= f(Pt, Y, A, N, Pc) where Qt is the quantity of milk demanded, Pt is the price of fresh cow milk, Y is average household income, A is advertising expenditure on processed pocket milk, N is population and Pc is the price of processed pocket milk.

1. What does Qt= f (Pt, Y, A, N, Pc) mean in words?
2. Identify the independent variables.
3. Make up a specific form for this function. (Use your knowledge of Economics to deduce whether the coefficients of the different independent variables should be positive or negative.)
Model Questions - Part D | Q 2 | Page 273

Calculate the elasticity of demand for the demand schedule by using differential calculus method P = 60 − 0.2Q where the price is

1. zero,
2. ₹20,
3. ₹40.
Model Questions - Part D | Q 3 | Page 273

The demand and supply functions are pd =1600 - x2 and ps = 2x2 + 400 respectively. Find the consumer’s surplus and producer’s surplus at an equilibrium point.

Model Questions - Part D | Q 4 | Page 273

What are the ideas of information and communication technology used in economics?

## Solutions for Chapter 12: Mathematical Methods for Economics

Model Questions - Part AModel Questions - Part BModel Questions - Part CModel Questions - Part D ## Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Economics Answers Guide chapter 12 - Mathematical Methods for Economics

Shaalaa.com has the Tamil Nadu Board of Secondary Education Mathematics Class 11th Economics Answers Guide Tamil Nadu Board of Secondary Education solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. Tamil Nadu Board Samacheer Kalvi solutions for Mathematics Class 11th Economics Answers Guide Tamil Nadu Board of Secondary Education 12 (Mathematical Methods for Economics) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.

Further, we at Shaalaa.com provide such solutions so students can prepare for written exams. Tamil Nadu Board Samacheer Kalvi textbook solutions can be a core help for self-study and provide excellent self-help guidance for students.

Concepts covered in Class 11th Economics Answers Guide chapter 12 Mathematical Methods for Economics are Introduction to Mathematical Methods for Economics, Functions of Mathematics, Differential Calculus, Integral Calculus, Information and Communication Technology (ICT), Introduction of Matrices.

Using Tamil Nadu Board Samacheer Kalvi Class 11th Economics Answers Guide solutions Mathematical Methods for Economics exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Tamil Nadu Board Samacheer Kalvi Solutions are essential questions that can be asked in the final exam. Maximum Tamil Nadu Board of Secondary Education Class 11th Economics Answers Guide students prefer Tamil Nadu Board Samacheer Kalvi Textbook Solutions to score more in exams.

Get the free view of Chapter 12, Mathematical Methods for Economics Class 11th Economics Answers Guide additional questions for Mathematics Class 11th Economics Answers Guide Tamil Nadu Board of Secondary Education, and you can use Shaalaa.com to keep it handy for your exam preparation.