POST UTME UNIPORT 2021 Economics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A firm's demand function is given by \( Q = 100 - 2P \), where Q is the quantity demanded and P is the price. If the firm's marginal revenue (MR) is 20, what is the value of its price elasticity of demand?
A. -0.5
B. -1.0
C. -1.5
D. -2.0
Question 2
A monopolist is producing a good with a demand curve given by Q = 250 - 5P and a marginal revenue curve given by MR = 500 - 5Q. What is the price at which the firm will maximize its profit?
A. ₦50
B. ₦75
C. ₦100
D. ₦125
Question 3
A firm's production function is given by Q = 2L + 3K. If the firm's output is 100 units and the wage rate is ₦20 per unit of labor, find the optimal level of capital.
A. K = 10
B. K = 20
C. K = 30
D. K = 40
Question 4
A country is experiencing a recession. The government decides to implement a fiscal policy to stimulate the economy. Which of the following fiscal policies would be most effective in stimulating the economy?
A. Increa\sing government sp\ending on infrastructure
B. Reducing taxes on corporations
C. Increa\sing government sp\ending on social welfare programs
D. Reducing government sp\ending on defense
Question 5
A firm is producing a good with a total revenue of ₦1,500 and a total \cost of ₦1,200. If the firm's average revenue is ₦150, what is the price elasticity of demand for the good?
A. 0.5
B. 1
C. 2
D. 3
Question 6
A government budget is given by the equation ( B(t) = 100 + 2t ), where t is the time period. If the government's initial budget is ( B(0) = 100 ), and the government wants to increase its budget by 10% every year, find the government's budget after 5 years.
A. ( 150 )
B. ( 160 )
C. ( 170 )
D. ( 180 )
Question 7
A government imposes a tax on a firm's output. The firm's supply curve is given by Q = 100 + 2P, where Q is the quantity supplied and P is the price. If the tax is ₦20 per unit, what is the new supply curve?
A. Q = 100 + 2P - 20
B. Q = 100 + 2P + 20
C. Q = 100 - 2P - 20
D. Q = 100 - 2P + 20
Question 8
A firm is producing a good with a total revenue of ₦2,000 and a total \cost of ₦1,800. If the firm's average revenue is ₦200, what is the price elasticity of demand for the good?
A. 0.5
B. 1
C. 2
D. 3
Question 9
A central bank's monetary policy is given by the equation \( M = 100 + 2R \), where M is the money supply and R is the interest rate. If the central bank's initial money supply is \( M_0 = 100 \) and interest rate is \( R_0 = 5 \), and the central bank wants to increase its money supply by 10% every year, find the central bank's new money supply and interest rate after 5 years.
A. \( M = 110, R = 5.5 \)
B. \( M = 120, R = 6 \)
C. \( M = 130, R = 6.5 \)
D. \( M = 140, R = 7 \)
Question 10
A consumer's utility function is given by U(x, y) = 2x + 3y. If the consumer's income is ₦100 and the prices of x and y are ₦20 and ₦30 respectively, find the optimal consumption bundle.
A. x = 2, y = 1
B. x = 3, y = 2
C. x = 4, y = 3
D. x = 5, y = 4
Question 11
A government imposes a tax on a firm's output. The firm's supply curve is given by Q = 100 + 2P, where Q is the quantity supplied and P is the price. If the tax is ₦20 per unit, what is the new supply curve?
A. Q = 100 + 2P - 20
B. Q = 100 + 2P + 20
C. Q = 100 - 2P - 20
D. Q = 100 - 2P + 20
Question 12
A country's balance of payments is given by the following equation: BOP = \( X - M \) + \( F - I \). If the country's exports (X) are ₦1000, imports (M) are ₦800, foreign investment (F) is ₦500, and domestic investment (I) is ₦200, what is the country's balance of payments?
A. ₦300
B. ₦400
C. ₦500
D. ₦600
Question 13
A firm's demand curve is given by Q = 100 - 2P, where Q is the quantity demanded and P is the price. If the firm's revenue is ₦1000, what is the price?
A. ₦50
B. ₦75
C. ₦100
D. ₦125
Question 14
The demand for a commodity is given by the equation Qd = 100 - 2P, where Qd is the quantity demanded and P is the price. If the price elasticity of demand is -2, what is the percentage change in quantity demanded when the price increases by 10%?
A. 20%
B. 30%
C. 40%
D. 50%
Question 15
A government imposes a tax on a firm's output. The firm's supply curve is given by Q = 100 + 2P, where Q is the quantity supplied and P is the price. If the tax is ₦20 per unit, what is the new supply curve?
A. Q = 100 + 2P - 20
B. Q = 100 + 2P + 20
C. Q = 100 - 2P - 20
D. Q = 100 - 2P + 20

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