POST UTME LEAD CITY UNIVERSITY 2023 Economics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A central bank wants to reduce inflation in an economy. It decides to increase the reserve requirement for commercial banks. This policy will:
A. reduce the money supply
B. increase the money supply
C. reduce the interest rate
D. increase the interest rate
Question 2
Suppose the demand for a product is given by the equation Qd = 100 - 2P, where Qd is the quantity demanded and P is the price. If the supply of the product is given by the equation Qs = 2P - 100, where Qs is the quantity supplied, find the equilibrium price and quantity.
A. ₦50
B. ₦75
C. ₦100
D. ₦125
Question 3
A consumer's utility function is given by U = 2x + 3y. If the consumer's current budget is ₦1,000 and the prices of x and y are ₦5 and ₦10 respectively, then the consumer's optimal consumption bundle is:
A. x = 40, y = 20
B. x = 30, y = 30
C. x = 20, y = 40
D. x = 10, y = 50
Question 4
Suppose a country's GDP is ₦10 trillion and its GNP is ₦12 trillion. If the country's net factor income from abroad is ₦2 trillion, find the country's national income.
A. ₦14 trillion
B. ₦15 trillion
C. ₦16 trillion
D. ₦17 trillion
Question 5
A country's agricultural sector is characterized by a high degree of economies of scale. What is the primary implication of this for the country's agricultural production?
A. Increased productivity and efficiency
B. Decreased productivity and efficiency
C. Increased prices and reduced output
D. Decreased prices and increased output
Question 6
A country's GDP is ₦1,500 billion. The country's GNP is ₦1,600 billion. What is the country's net factor income from abroad?
A. ₦100 billion
B. ₦200 billion
C. ₦300 billion
D. ₦400 billion
Question 7
A firm's demand for labor is given by the equation L = 100 - 2P, where L is the quantity of labor demanded and P is the wage rate. If the supply of labor is given by the equation L = 2P - 100, find the equilibrium wage rate and quantity of labor.
A. ₦20
B. ₦30
C. ₦40
D. ₦50
Question 8
A firm's average total \cost (ATC) curve is U-shaped, with ATC initially decrea\sing and then increa\sing. What is the primary reason for this U-shaped ATC curve?
A. Increa\sing marginal product of labor
B. Decrea\sing marginal product of labor
C. Increa\sing marginal \cost
D. Decrea\sing marginal revenue
Question 9
A central bank uses the money supply to control inflation. If the money supply is given by \( M = 1000 + 0.1Y \) and the price level is given by \( P = 10 + 0.01Y \), find the rate of inflation.
A. \( 2% \ \)
B. \( 5% \ \)
C. \( 10% \ \)
D. \( 15% \ \)
Question 10
A country's export supply function is given by X = 100 + 2P - 3Y. If the price of the exported good is P = 20 and the country's income is Y = 100, what is the quantity of exports supplied?
A. \( X = 100 + 2\( 20 \ \) - 3(100) )
B. \( X = 100 + 2\( 100 \ \) - 3(20) )
C. \( X = 100 + 3\( 20 \ \) - 2(100) )
D. \( X = 100 + 3\( 100 \ \) - 2(20) )
Question 11
A monopolist faces a demand curve given by Q = 100 - 2P. The firm's marginal \cost (MC) is given by MC = 10 + 2Q. What is the profit-maximizing price and quantity for the monopolist?
A. \( P = 40, Q = 60 \)
B. \( P = 30, Q = 70 \)
C. \( P = 20, Q = 80 \)
D. \( P = 10, Q = 90 \)
Question 12
A firm's production function is given by Q = 100L^0.5K^0.5. If the firm's current input levels are L = 4 and K = 9, what is the marginal product of labor (MPL) at these input levels?
A. \( MPL = \frac{50}{\sqrt{4}} \)
B. \( MPL = \frac{50}{\sqrt{9}} \)
C. \( MPL = \frac{50\sqrt{4}}{9} \)
D. \( MPL = \frac{50\sqrt{9}}{4} \)
Question 13
A firm's total \cost (TC) is given by the equation TC = 100 + 10x + 2x^2, where x is the number of units sold. If the firm sells 20 units, what is the total \cost?
A. ₦2000
B. ₦2200
C. ₦2400
D. ₦2600
Question 14
A firm's revenue function is given by R(q) = 20q - 0.5q^2. If the firm produces 20 units of output, what is the marginal revenue?
A. Marginal Revenue = 15
B. Marginal Revenue = 20
C. Marginal Revenue = 25
D. Marginal Revenue = 30
Question 15
A firm's total revenue (TR) is given by the equation TR = 100x - 2x^2, where x is the number of units sold. If the firm sells 20 units, what is the total revenue?
A. ₦1800
B. ₦2000
C. ₦2200
D. ₦2400

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