# Economics 2013 SU Past Paper-A BA / B.Sc

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#### Economics 2013 SU Past Paper-A BA / B.Sc

University of Sargodha – BA / B.Sc (1st Annual) 2013

Time Allowed: 3 HoursMaximum Marks: 100

Note: Attempt five questions in all, selecting two questions from Part-I and three questions from Part-II

#### PART-I

Question # 1:

What is derivative? Discuss the major rules of derivatives.

Question # 2:

A profit function of a firm is given π=-2Q2 + 90Q – 4,

a) Find the quantity Q of production at which profit of firm is maximum.

b) Calculate: i) Total Profit ii) Marginal Profit iii) Average Profit

Question # 3:

Demand and supply function are given: Qd=30-2P, Qs=5+3P

a) Find the equilibrium price and quantity.

b) Determine the effect on the market equilibrium if the government decides to impose a tax of Rs. 10 on each good.

Question # 4:

Find the numerical value of equilibrium of National Income by using following method while C=40+0.5Yd, I=60, G=55, T=10+0.2Y

a) Y=C+I+G

b) I+G=S+T

#### PART-II

Question # 5:

What is indifference curve? Explain the following for normal goods:

a) Price Effect b) Income Effect c) Substitution Effect

Question # 6:

Explain how a producer achieve the best combination of factors of production?

Question # 7:

Draw supply curve of a firm i) in the short run ii) in the long run under perfect competition.

Question # 8:

What is elasticity of demand? Measure price elasticity of demand by using total expenditure method.

Question # 9:

How price and output is determined under discriminating monopoly?

Question # 10:

Explain the modern theory of the pricing of the factors of production.

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