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# Board Paper of Class 12-Science 2015 Economics (SET 1) - Solutions

General Instructions:
(i) All questions in both sections are compulsory. However, there is internal choice in some questions.
(ii) Marks for questions are indicated against each question.
(iii) Question No.1-3 and 15-19 are very short answer questions carrying 1 mark each. They are required to be answered in one sentence.
(iv) Question No.4-8 and 20-22 are short answer questions carrying 3 marks each. Answers to them should not normally exceed 60 words each.
(v) Question No.9-10 and 23-25 are also short answer questions carrying 4 marks each. Answers to them should not normally exceed 70 words each.
(vi) Question No.11-14 and 26-29 are long answer questions carrying 6 marks each. Answers to them should not normally exceed 100 words each.
(vii) Answers should be brief and to the point and the above word limit be adhered to as far as possible.

• Question 2
When income of the consumer falls the impact on price-demand curve of an inferior good is : (choose the correct alternative)
(a) Shifts to the right.
(b) Shifts of the left.
(c) There is upward movement along the curve.
(d) There is downward movement along the curve. VIEW SOLUTION

• Question 3
If Marginal Rate of Substitution is constant throughout, the Indifference curve will be : (choose the correct alternative)
(a) Parallel to the x-axis.
(b) Downward sloping concave.
(c) Downward sloping convex.
(d) Downward sloping straight line. VIEW SOLUTION

• Question 4
Giving reason comment on the shape of Production Possibilities curve based on the following schedule :  Good X (units) Good Y (units) 0 10 1 9 2 7 3 4 4 0
VIEW SOLUTION

• Question 5
What will be the impact of recently launched 'Clean India Mission' (Swachh Bharat Mission) on the Production Possibilities curve of the economy and why?

OR

What will likely be the impact of large scale outflow of foreign capital on Production Possibilities curve of the economy and why? VIEW SOLUTION

• Question 6
The measure of price elasticity of demand of a normal good carries minus sign while price elasticity of supply carries plus sign. Explain why? VIEW SOLUTION

• Question 7
There are large number of buyers in a perfectly competitive market. Explain the significance of this feature. VIEW SOLUTION

• Question 8
Explain the effects of 'maximum price ceiling' on the market of a good'? Use diagram. VIEW SOLUTION

• Question 9
A consumer spends Rs. 1000 on a good priced at Rs. 8 per unit. When price rises by 25 per cent, the consumer continues to spend Rs. 1000 on the good. Calculate price elasticity of demand by percentage method. VIEW SOLUTION

• Question 10
Define cost. State the relation between marginal cost and average variable cost.

Or

Define revenue. State the relation between marginal revenue and average revenue. VIEW SOLUTION

• Question 11
A consumer consumes only two goods X and Y both priced at Rs. 3 per unit. If the consumer chooses a combination of these two goods with Marginal Rate of Substitution equal to 3, is the consumer in equilibrium? Give reasons. What will a rational consumer do in this situation? Explain.

Or

A consumer consumes only two goods X and Y whose prices are Rs. 4 and Rs. 5 per unit respectively. If the consumer chooses a combination of the two goods with marginal utility of X equal to 5 and that of Y equal to 4, is the consumer in equilibrium? Give reason. What will a rational consumer do in this situation? Use utility analysis. VIEW SOLUTION

• Question 12
State the different phases of changes in Total Product and Marginal Product in the Law of Variable Proportions. Also show the same in a single diagram. VIEW SOLUTION

• Question 13
Why is the equality between marginal cost and marginal revenue necessary for a firm to be in equilibrium? Is it sufficient to ensure equilibrium? Explain. VIEW SOLUTION

• Question 14
Market for a good is in equilibrium. The demand for the good 'increases'. Explain the chain of effects of this change. VIEW SOLUTION

• Question 15
What is 'aggregate supply' in macroeconomics? VIEW SOLUTION

• Question 16
The value of multiplier is : (choose the correct alternative)
(a) $\frac{1}{MPC}$

(b) $\frac{1}{MPS}$

(c) $\frac{1}{1-MPS}$

(d) $\frac{1}{MPC-1}$ VIEW SOLUTION

• Question 17
Borrowing in government budget is : (choose the correct alternative)

(a) Revenue deficit
(b) Fiscal deficit
(c) Primary deficit
(d) Deficit in taxes VIEW SOLUTION

• Question 18
The non-tax revenue in the following is : (choose the correct alternative)
(a) Export duty
(b) Import duty
(c) Dividends
(d) Excise VIEW SOLUTION

• Question 19
Other things remaining unchanged, when in a country the price of foreign currency rises, national income is : (choose the correct alternative)

(a) Likely to rise
(b) Likely to fall
(c) Likely to rise and fall both
(d) Not affected VIEW SOLUTION

• Question 20
If Real GDP is Rs. 200 and Price Index (with base = 100) is 110, calculate Nominal GDP. VIEW SOLUTION

• Question 21
Name the broad categories of transactions recorded in the 'capital account' of the Balance of Payments Accounts.

OR

Name the broad categories of transactions recorded in the 'current account' of the Balance of Payments Accounts. VIEW SOLUTION

• Question 22
Where will sale of machinery to abroad be recorded in the Balance of Payments Accounts? Give reasons. VIEW SOLUTION

• Question 23
Explain the 'bank of issue' function of the central bank.

OR

Explain 'Government's Bank' function of central bank. VIEW SOLUTION

• Question 24
Government of India has recently launched 'Jan-Dhan Yojna' aimed at every household in the country to have at least one bank account. Explain how deposits made under the plan are going to affect national income of the country. VIEW SOLUTION

• Question 25
An economy is in equilibrium. Calculate national income from the following :

Autonomous consumption = 100
Marginal propensity to save = 0.2
Investment expenditure = 200 VIEW SOLUTION

• Question 26
Giving reason explain how should the following be treated in estimation of national income:
(i) Expenditure by a firm on payment of fees to a chartered accountant
(ii) Payment of corporate tax by a firm
(iii) Purchase of refrigerator by a firm for own use VIEW SOLUTION

• Question 27
Explain the concept of Inflationary Gap. Explain the role of Repo Rate in reducing this gap.

OR

Explain the concept of Deflationary Gap and the role of 'Open Market Operations' in reducing this gap. VIEW SOLUTION

• Question 28
Explain the role the government can play through the budget in influencing allocation of resources. VIEW SOLUTION

• Question 29
Calculation National Income and Personal Disposable Income :
 (Rs. crores) (i) Personal tax 80 (ii) Private final consumption expenditure 600 (iii) Undistributed profits 30 (iv) Private income 650 (v) Government final consumption expenditure 100 (vi) Corporate tax 50 (vii) Net domestic fixed capital formation 70 (viii) Net indirect tax 60 (ix) Depreciation 14 (x) Change in stocks (−) 10 (xi) Net imports 20 (xii) Net factor income to abroad 10
VIEW SOLUTION
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