POST UTME BABCOCK UNIVERSITY 2023 Economics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A consumer has a utility function given by U(x, y) = 2x + 3y. If the consumer's income is ₦1000 and the prices of x and y are ₦2 and ₦3 respectively, what is the consumer's optimal bundle?
A. x = 200, y = 100
B. x = 150, y = 150
C. x = 100, y = 200
D. x = 200, y = 200
Question 2
A firm has a production function Q = 2L^0.5K^0.5. If the price of labor is $10 and the price of capital is $20, find the profit-maximizing values of L and K.
A. $L = 100, K = 100$
B. $L = 200, K = 200$
C. $L = 50, K = 50$
D. $L = 25, K = 25$
Question 3
The central bank of a country has a monetary policy objective of reducing inflation from 5% to 3% within the next 2 years. If the current interest rate is 10%, what is the required interest rate to achieve this objective?
A. 12%
B. 15%
C. 18%
D. 20%
Question 4
A firm's \cost function is given by C = 2L + 3K, where C is \cost, L is labor, and K is capital. What is the marginal \cost of this \cost function?
A. MC = 2
B. MC = 3
C. MC = 2L + 3K
D. MC dep\ends on other factors
Question 5
A consumer's utility function is given by U(x,y) = 2x + 3y. If the consumer's budget constraint is 10x + 5y = 50, what is the consumer's optimal consumption bundle?
A. (5,10)
B. (10,5)
C. (15,0)
D. (0,15)
Question 6
A country's agricultural sector is characterized by a high degree of price instability. What is the likely effect on the country's overall economic growth?
A. Economic growth increases
B. Economic growth decreases
C. Economic growth remains unchanged
D. Economic growth dep\ends on other factors
Question 7
A government imposes a tax on a good, which leads to a decrease in its demand. What is the effect on the government's revenue from this tax?
A. The revenue increases
B. The revenue decreases
C. The revenue remains unchanged
D. The revenue dep\ends on other factors
Question 8
The Marshall-Lerner condition states that a country's balance of payments will improve if the sum of the percentage changes in its export and import prices exceeds the percentage change in its exchange rate. What is the implication of this condition on a country's trade balance?
A. The trade balance will worsen
B. The trade balance will improve
C. The trade balance will remain unchanged
D. The trade balance will dep\end on other factors
Question 9
A firm's production function is given by Q = 100L^0.5K^0.5, where Q is output, L is labor, and K is capital. If the firm's labor and capital are increased by 20% and 15% respectively, what is the percentage change in output?
A. 10%
B. 12%
C. 15%
D. 18%
Question 10
A government imposes a tax on imported goods to raise revenue. However, the tax also leads to a decrease in the quantity of goods imported. U\sing the concept of opportunity \cost, explain why the government's decision to impose the tax may not be optimal.
A. The tax leads to a decrease in the quantity of goods imported, resulting in a loss of consumer surplus.
B. The tax increases the price of imported goods, leading to a decrease in the quantity demanded.
C. The tax reduces the opportunity \cost of importing goods, making it more attractive to consumers.
D. The tax increases the revenue of the government, but at the \cost of a decrease in the quantity of goods imported.
Question 11
A consumer's indifference curve is given by U = 2Q1 + 3Q2, where U is utility, Q1 and Q2 are quantities. If the consumer's income increases by 10% and the prices of good 1 and good 2 increase by 5% and 8% respectively, what is the new indifference curve equation?
A. U = 2.1Q1 + 3.24Q2
B. U = 2.1Q1 + 3.24Q2
C. U = 2.1Q1 + 3.24Q2
D. U = 2.1Q1 + 3.24Q2
Question 12
A firm's production function is given by Q = 100L^0.5K^0.5. If the price of labor is ₦100 per unit and the price of capital is ₦50 per unit, and the firm is currently producing 100 units of output, what is the value of the marginal product of labor?
A. 10
B. 20
C. 30
D. 40
Question 13
A country's balance of payments is in equilibrium when its current account and capital account are equal. However, if the current account is in deficit, the capital account must be in surplus to maintain equilibrium. Which of the following is a correct statement regarding the balance of payments?
A. The current account and capital account are always equal in a country's balance of payments.
B. A current account deficit requires a capital account surplus to maintain equilibrium.
C. A capital account surplus always leads to a current account surplus.
D. The balance of payments is always in equilibrium.
Question 14
A monopolist faces a demand curve given by Qd = 100 - 2P and a \cost function C(Q) = 2Q^2 + 10Q. Find the profit-maximizing quantity and price.
A. $Q = 20, P = 40$
B. $Q = 30, P = 50$
C. $Q = 40, P = 60$
D. $Q = 50, P = 70$
Question 15
A firm's \cost function is given by TC = 100 + 2L + 3K, where TC is total \cost, L is labor, and K is capital. If the firm's labor and capital are increased by 10% and 15% respectively, what is the new total \cost?
A. 100 + 2.2L + 3.45K
B. 100 + 2.2L + 3.45K
C. 100 + 2.2L + 3.45K
D. 100 + 2.2L + 3.45K

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