Board Paper of Class 12-Science 2014 Economics (SET 3) - Solutions

General Instructions :
(i) All questions in both the sections are compulsory.
(ii) Marks for questions are indicated against each.
(iii) Question Nos. 1-5 and 17-21 are very short-answer questions carrying 1 mark each. They are required to be answered in one sentence each.
(iv) Question Nos. 6-10 and 22-26 are short-answer questions carrying 3 marks each. Answer toÂ them should not normally exceed 60 words each.
(v) Question Nos. 11-13 and 27-29 are also short-answer questions carrying 4 marks each. Answer to them should not normally exceed 70 words each.
(vi) Question Nos. 14-16 and 30-32 are long-answer questions carrying 6 marks each. Answer to them should not normally exceed 100 words each.
(vii) Questions marked star (*) are value based questions.
(viii) Answer should be brief and to the point and the above word limit should be adhered to as far as possible.

Question 1
Define marginal revenue. VIEW SOLUTION

Question 2
Unemployment is reduced due to the measures taken by the government. State its economic value in the context of production possibilities frontier. VIEW SOLUTION

Question 3
Give meaning of 'returns to a factor.' VIEW SOLUTION

Question 4
What is perfect oligopoly? VIEW SOLUTION

Question 5
Define indifference map. VIEW SOLUTION

Question 6
What is the behaviour of average fixed cost as output is increased? Why is it so? VIEW SOLUTION

Question 7
State the relation between marginal revenue and average revenue.

OR

State the relation between total cost and marginal cost. VIEW SOLUTION

Question 8
Why are the firms said to be interdependent in an oligopoly market? Explain. VIEW SOLUTION

Question 9
Explain the central problem 'for whom to produce.' VIEW SOLUTION

Question 10

A consumer buys 30 units of a good at a price of Rs. 10 per unit. Price elasticity of demand for the good is (−) 1. How many units the consumer will buy at a price of Rs. 9 per unit ? Calculate.
VIEW SOLUTION

Question 11
What is market demand for a good? Name the factors determining market demand. VIEW SOLUTION

Question 12
State the behaviour of marginal product in the law of variable proportions. Explain the causes of this behaviour. VIEW SOLUTION

Question 13

A consumer consumes only two goods. Explain consumer's equilibrium with the help of utility analysis.

OR

A consumer consumes only two goods A and B and is in equilibrium. Show that when price of good B falls, demand for B rises. Answer this question with the help of utility analysis.
VIEW SOLUTION

Question 14
From the following information about a firm, find the firms equilibrium output in terms of marginal cost and marginal revenue. Give reasons. Also find profit at this output.

Output (units) Total Revenue (Rs.) Total Cost (Rs.)

1 7 8

2 14 15

3 21 21

4 28 28

5 35 36

VIEW SOLUTION

Question 15

Market for a product is in equilibrium. Supply of the product "decreases." Explain the chain of effects of this change till the market again reaches equilibrium. Use diagram.
VIEW SOLUTION

Question 16

Explain the conditions of consumer's equilibrium with the help of the indifference curve analysis.

Or

Explain the three properties of the indifference curves.
VIEW SOLUTION

Question 17
Define aggregate supply? VIEW SOLUTION

Question 18
Define government budget. VIEW SOLUTION

Question 19
What is 'devaluation'? VIEW SOLUTION

Question 20
What are demand deposits? VIEW SOLUTION

Question 21
Define marginal propensity to consume. VIEW SOLUTION

Question 22
Is the following revenue expenditure or capital expenditure in the context of government budget? Give reason.
(i) Expenditure on collection of taxes.
(ii) Expenditure on purchasing computers. VIEW SOLUTION

Question 23
How does giving incentives for exports influence foreign exchange rate? Explain. VIEW SOLUTION

Question 24
Define externalities. Give an example of negative externality. What is its impact on welfare? VIEW SOLUTION

Question 25
Explain the significance of 'store of value' function of money.

Or

Explain the significance of 'medium of exchange' function of money. VIEW SOLUTION

Question 26
Explain the meaning of balance of payments deficit. VIEW SOLUTION

Question 27
Calculate marginal propensity to consume from the following data about an economy which is in equilibrium:
National Income = 1500
Autonomus consumption expenditure = 300
Investment expenditure = 300 VIEW SOLUTION

Question 28
Government raises its expenditure on producing public goods. Which economic value does it reflect? Explain. VIEW SOLUTION

Question 29
Define money supply and explain its components.

Or

Explain the 'lender of last resort' function of central bank. VIEW SOLUTION

Question 30
Giving reason explain how should the following be treated in estimating gross domestic product at market price ?
(i) Fees to a mechanic paid by a firm.
(ii) Interest paid by an individual on a car loan taken from a bank.
(iii) Expenditure on purchasing a car for use by a firm. VIEW SOLUTION

Question 31
Explain national income equilibrium through aggregate demand and aggregate supply. Use diagram. Also explain the changes that take place in an economy when the economy is not in equilibrium.
OR
Outline the steps required to be taken in deriving saving curve from the given consumption curve. Use diagram. VIEW SOLUTION

Question 32

Calculate net domestic product at factor cost and net national disposable income from the following:

		(Rs. Arab)
(i)	Net current transfers to abroad	5
(ii)	Government final consumption expenditure	100
(iii)	Net indirect tax	80
(iv)	Private final consumption expenditure	300
(v)	Consumption of fixed capital	20
(vi)	Gross domestic fixed capital formation	50
(vii)	Net imports	(–)10
(viii)	Closing stock	25
(ix)	Opening stock	25
(x)	Net factor income to abroad	10

VIEW SOLUTION

More Board Paper Solutions for Class 12 Science Economics

Board Paper Solutions for Other Subjects

Output (units)	Total Revenue (Rs.)	Total Cost (Rs.)
1	7	8
2	14	15
3	21	21
4	28	28
5	35	36