POST UTME SKYLINE UNIVERSITY 2017 Economics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A country's GDP is given by the equation GDP = C + I + G + \( X - M \). Explain the difference between GDP and GNP.
A. GDP refers to the total value of goods and services produced within a country's borders, while GNP refers to the total value of goods and services produced by a country's citizens, regardless of where they are produced.
B. GDP refers to the total value of goods and services consumed by a country's citizens, while GNP refers to the total value of goods and services produced within a country's borders.
C. GDP refers to the total value of goods and services produced by a country's citizens, while GNP refers to the total value of goods and services consumed by a country's citizens.
D. GDP refers to the total value of goods and services produced within a country's borders, while GNP refers to the total value of goods and services produced by foreigners within the country.
Question 2
A country's GDP is ₦100 billion, and its GNP is ₦120 billion. What is the country's net factor income from abroad?
A. ₦20 billion
B. ₦30 billion
C. ₦40 billion
D. ₦50 billion
Question 3
A country's GNP is given by the equation GNP = GDP + (net income from abroad). Explain the significance of each component of this equation.
A. GDP refers to the total value of goods and services produced within a country's borders.
B. Net income from abroad refers to the difference between the value of income earned by a country's citizens from abroad and the value of income earned by foreigners within the country.
C. GNP refers to the total value of goods and services produced by a country's citizens, regardless of where they are produced.
D. GDP refers to the total value of goods and services consumed by a country's citizens.
Question 4
A country's agricultural sector is characterized by a high degree of specialization and economies of scale. What is the likely effect of an increase in agricultural productivity on the country's agricultural sector?
A. Increased employment in the agricultural sector
B. Increased output in the agricultural sector
C. Decreased output in the agricultural sector
D. Increased prices of agricultural products
Question 5
U\sing the concept of elasticity of demand, explain why a price increase of 10% in a perfectly competitive market may lead to a decrease in quantity demanded of 5%.
A. The law of demand states that as price increases, quantity demanded decreases.
B. The elasticity of demand is unit elastic, so a 10% price increase will lead to a 10% decrease in quantity demanded.
C. The demand curve is inelastic, so a 10% price increase will lead to a less than 10% decrease in quantity demanded.
D. The demand curve is perfectly elastic, so a 10% price increase will lead to a greater than 10% decrease in quantity demanded.
Question 6
Consider a firm that is producing a good u\sing a production function Q = 3L^0.5K^0.5. If the firm's current input prices are w = 15 and r = 30, and it is currently producing 150 units of output, what is the firm's current total \cost?
A. ₦45,000
B. ₦60,000
C. ₦75,000
D. ₦90,000
Question 7
Consider a firm operating in a perfectly competitive market. If the firm's average \cost curve intersects the demand curve at a point where the quantity supplied is 100 units, and the price is ₦100, what is the firm's profit-maximizing output?
A. 50 units
B. 100 units
C. 150 units
D. 200 units
Question 8
A monopolist has a \cost function given by \( C = 100 + 20Q \) and a revenue function given by \( R = 200Q - 2Q^2 \). Find the monopolist's profit-maximizing output.
A. Q = 10
B. Q = 20
C. Q = 30
D. Q = 40
Question 9
The concept of scarcity is closely related to the idea of opportunity \cost. Explain how scarcity leads to opportunity \cost, u\sing a diagram to illustrate your answer.
A. Scarcity leads to opportunity \cost because individuals must make choices about how to allocate their resources.
B. Opportunity \cost is the value of the next best alternative that is given up when a choice is made.
C. Scarcity leads to opportunity \cost because individuals must prioritize their wants and needs.
D. Opportunity \cost is the \cost of producing one unit of a good or service.
Question 10
A monopolist faces a demand curve given by \( Q = 100 - 2P \). If the firm's marginal \cost (MC) curve is given by \( MC = 10 + 2Q \), what is the firm's profit-maximizing price?
A. ₦40
B. ₦50
C. ₦60
D. ₦70
Question 11
A firm's production function is given by Q = 100K^\( 1/2 \)L^\( 1/2 \). If the firm's output is 100 units when K = 16 and L = 16, what is the firm's average product of labor (APL) when K = 16 and L = 16?
A. 2.5
B. 5
C. 10
D. 20
Question 12
A consumer's indifference curve is given by the equation ( U(x,y) = 2x + 3y ). If the consumer's income is ₦1000 and the prices of x and y are ₦5 and ₦10 respectively, find the consumer's optimal bundle of x and y.
A. x = 80, y = 20
B. x = 40, y = 40
C. x = 60, y = 30
D. x = 20, y = 60
Question 13
U\sing the concept of comparative advantage, explain why a country should specialize in producing goods for which it has a lower opportunity \cost.
A. Because the country will be able to produce more goods at a lower \cost.
B. Because the country will be able to produce goods for which it has a comparative advantage.
C. Because the country will be able to export goods for which it has a comparative advantage.
D. Because the country will be able to import goods for which it has a comparative disadvantage.
Question 14
A country's GDP is given by the equation GDP = C + I + G + \( X - M \). Explain the significance of each component of this equation.
A. Consumption (C) refers to the amount of goods and services purchased by households.
B. Investment (I) refers to the amount of goods and services produced by firms.
C. Government sp\ending (G) refers to the amount of goods and services purchased by the government.
D. Net exports \( X - M \) refers to the difference between the value of exports and imports.
Question 15
A consumer has an indifference curve that can be represented by the utility function U(x,y) = x^2 + 2y. If the consumer's budget constraint is 2x + 3y = 100, and the consumer is currently consuming 20 units of good x and 10 units of good y, what is the consumer's current utility?
A. 120
B. 140
C. 160
D. 180

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