POST UTME IGBINEDION UNIVERSITY 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 quantity demanded and P is price. If the firm's marginal revenue is ₦50, calculate the price elasticity of demand.
A. 0.5
B. 1
C. 2
D. 5
Question 2
A firm's production function is given by Q = 2L^0.5K^0.5. If the firm's current labor and capital inputs are 4 and 9 respectively, what is the marginal product of labor?
A. 1.5
B. 2.5
C. 3.5
D. 4.5
Question 3
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 10 and 20 respectively, calculate the opportunity \cost of an additional unit of capital.
A. ₦50
B. ₦100
C. ₦200
D. ₦500
Question 4
The concept of monopoly is a market structure in which a \single firm produces a unique product. Which of the following is a characteristic of monopoly?
A. A \single firm produces a unique product
B. Firms have complete control over the market
C. Firms can set prices and output levels
D. All of the above
Question 5
A government is considering a tax on a particular good. The supply curve of the good is given by Q = 100 - 2P, and the demand curve is given by Q = 200 - 5P. If the government imposes a tax of ₦10 per unit on the good, what will be the new equilibrium price and quantity?
A. P = ₦15, Q = 50
B. P = ₦20, Q = 30
C. P = ₦25, Q = 20
D. P = ₦30, Q = 10
Question 6
A firm's marginal revenue (MR) and marginal \cost (MC) curves are given by MR = 100 - 2Q and MC = 20 + Q, respectively. If the firm is currently producing 10 units of output, what is the firm's profit-maximizing quantity?
A. 5 units
B. 10 units
C. 15 units
D. 20 units
Question 7
A government is considering a tax on a particular good. The demand for the good is given by Q = 100 - 2P, and the supply of the good is given by Q = 2P. What is the optimal tax rate?
A. 10%
B. 20%
C. 30%
D. 40%
Question 8
Consider a firm operating in a perfectly competitive market with a production function Q = 2L^0.5K^0.5. If the firm's current input prices are w = 10 and r = 20, calculate the firm's optimal input bundle (L, K) u\sing the Hotelling's Lemma.
A. L = 100, K = 100
B. L = 50, K = 50
C. L = 200, K = 200
D. L = 150, K = 150
Question 9
The elasticity of demand for a commodity is given by the formula \( eta = \frac{P}{Q} \frac{dQ}{dP} \). If the price of the commodity increases by 10% and the quantity demanded decreases by 5%, what is the elasticity of demand?
A. 0.5
B. 1.0
C. 1.5
D. 2.0
Question 10
The money market is a market where financial assets such as bonds, stocks, and currencies are traded. Which of the following is a characteristic of the money market?
A. It is a market for long-term loans
B. It is a market for short-term loans
C. It is a market for financial assets
D. It is a market for physical goods
Question 11
A monopolist faces a demand curve given by Q = 100 - 2P and a \cost function C(Q) = 2Q^2 + 10Q. Find the profit-maximizing price and quantity.
A. P = 40, Q = 30
B. P = 50, Q = 20
C. P = 60, Q = 10
D. P = 70, Q = 5
Question 12
A firm is producing a good with a production function \( Q = 2L^2 + 3K^2 \), where ( L ) is labor and ( K ) is capital. If the firm is currently producing 100 units of the good with 10 units of labor and 5 units of capital, what is the average product of labor?
A. 20
B. 30
C. 40
D. 50
Question 13
The balance of payments (BOP) is a statistical statement that summarizes a country's economic transactions with the rest of the world over a specific period of time. Which of the following is a component of the BOP?
A. Current account
B. Capital account
C. Financial account
D. All of the above
Question 14
The law of diminishing marginal utility states that as the quantity of a good consumed increases, the marginal utility derived from each additional unit decreases. Which of the following is a consequence of this law?
A. The demand for the good increases
B. The supply of the good increases
C. The price of the good increases
D. The quantity demanded of the good decreases
Question 15
The concept of scarcity is a fundamental economic concept that refers to the limited availability of resources. Which of the following is a consequence of scarcity?
A. Increased production
B. Decreased consumption
C. Increased prices
D. All of the above

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