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Bahauddin Zakariya University BZU Multan BA, B.SC Economics Past Paper 2009

Bahauddin Zakariya University BZU Multan BA, B.SC Economics Past Paper 2009

Part-1

Q #1(a)Solve the following equation with formula and factorization methods.

5x²-4x=1

(b)Solve these simultaneous equation with substitution and elimination methods.

5x+2y=17
2x-3y=3

Q#2 (a)Find out equilibrium price and equilibrium quantity from the following functional equations of demand and supply algebraically.
c=Q^3-2Q²+9Q

(b) A firm’s cost function is given.Find out at which Marginal cost is minimum.Find the value of MC also.

c=Q^3-2Q²+9Q

Q#3 Calculate the Median,Q3 and D7 from the following data.

C.I 0-4.9 5-9.9 10-14.9 15-19.9 20-24.9 25-29.9
F 3 4 9 11 15 13

30-34-9 35-39.9 40-44.9 45-49.9
7 5 2 1
Q#4 Find index number from the following data as 2000 base year with Laspeyers, Passche and Marshal Edegeworth Methods.
commodities 2000 2005
P Q P Q
wheat 30 180 35 100
rice 10 70 12 75
maize 15 100 15 125

Note :Attempt two question from part-1 each one from mathematics and one from statistics.

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