Practice post utme aaua economics 2022 Past Questions

Question 1

U\sing the concept of returns to scale, explain why a firm's production function is likely to exhibit increa\sing returns to scale in the short run but decrea\sing returns to scale in the long run.

Correct A. The firm's production function exhibits increa\sing returns to scale in the short run because of the law of diminishing marginal returns.

B. The firm's production function exhibits decrea\sing returns to scale in the long run because of the law of increa\sing marginal \costs.

C. The firm's production function exhibits increa\sing returns to scale in the long run because of the law of cons\tant returns to scale.

D. The firm's production function exhibits decrea\sing returns to scale in the short run because of the law of increa\sing marginal returns.

Correct Answer: A

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Question 2

A country's balance of payments account shows a trade deficit of ₦100 billion. What is the likely effect on the country's exchange rate?

A. The exchange rate is likely to appreciate.

Correct B. The exchange rate is likely to depreciate.

C. The exchange rate is likely to remain unchanged.

D. The exchange rate is likely to fluctuate.

Correct Answer: B

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Question 3

U\sing the concept of opportunity \cost, explain why a firm may choose to produce a good with a low price elasticity of demand.

A. The firm may choose to produce a good with a low price elasticity of demand because it is a luxury good.

Correct B. The firm may choose to produce a good with a low price elasticity of demand because it is a necessity good.

C. The firm may choose to produce a good with a low price elasticity of demand because it is a substitute for another good.

D. The firm may choose to produce a good with a low price elasticity of demand because it is a complement for another good.

Correct Answer: B

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Question 4

A firm's \cost function is given by C(x) = 2x^2 + 10x + 5. What is the marginal \cost function?

A. ( C'(x) = 2x + 5 )

Correct B. ( C'(x) = 4x + 10 )

C. ( C'(x) = x^2 + 10 )

D. ( C'(x) = 2x^2 + 10 )

Correct Answer: B

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Question 5

A country's inflation rate is 10% per annum. What is the effect on the purcha\sing power of a consumer who has ₦1000 in their pocket?

A. The purcha\sing power of the consumer increases by 10%.

Correct B. The purcha\sing power of the consumer decreases by 10%.

C. The purcha\sing power of the consumer remains unchanged.

D. The purcha\sing power of the consumer fluctuates.

Correct Answer: B

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Question 6

The demand for a product is given by the equation Qd = 100 - 2P, where Qd is the quantity demanded and P is the price. The supply of the product is given by the equation Qs = 2P - 100, where Qs is the quantity supplied and P is the price. If the equilibrium price is 50, what is the equilibrium quantity?

Correct A. 50

B. 100

C. 150

D. 200

Correct Answer: A

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Question 7

Agricultural production in Nigeria is characterized by low productivity and low income. Which of the following is a major constraint to agricultural production in Nigeria?

A. Lack of irrigation facilities

Correct B. Lack of fertilizers and pesticides

C. Lack of storage facilities

D. Lack of transportation facilities

Correct Answer: B

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Question 8

The National Income Accounting (NIA) system is used to measure the total income of a country. Which of the following is a component of NIA?

Correct A. Gross Domestic Product (GDP)

B. Gross National Product (GNP)

C. Net Domestic Product (NDP)

D. Net National Product (NNP)

Correct Answer: A

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Question 9

The balance of payments (BOP) is a statistical statement that summarizes a country's economic transactions with the rest of the world. Which of the following is a component of the BOP?

A. Current account

B. Capital account

C. Financial account

Correct D. All of the above

Correct Answer: D

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Question 10

The production function is given by the equation Q = 2K^0.5L^0.5, where Q is the output, K is the capital and L is the labor. If the capital is 100 and the labor is 100, what is the output?

A. 100

Correct B. 200

C. 300

D. 400

Correct Answer: B

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Question 11

The concept of scarcity in economics implies that the wants and needs of individuals are unlimited, but the resources available to satisfy these wants and needs are limited. Which of the following is a correct statement regarding the implications of scarcity?

A. Scarcity leads to a decrease in the s\tandard of living.

B. Scarcity results in a decrease in the production of goods and services.

C. Scarcity leads to an increase in the prices of goods and services.

Correct D. Scarcity results in a decrease in the consumption of goods and services.

Correct Answer: D

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Question 12

A monopolistically competitive firm is characterized by a large number of firms producing a differentiated product. Which of the following is a characteristic of a monopolistically competitive market?

A. A \single firm produces the entire output.

B. Firms produce a homogeneous product.

C. Firms have a large number of close substitutes.

Correct D. Firms produce a differentiated product.

Correct Answer: D

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Question 13

The concept of opportunity \cost is closely related to the concept of scarcity. Which of the following is a correct statement regarding opportunity \cost?

A. Opportunity \cost is the \cost of producing a good or service.

B. Opportunity \cost is the benefit of producing a good or service.

Correct C. Opportunity \cost is the \cost of not producing a good or service.

D. Opportunity \cost is the benefit of not producing a good or service.

Correct Answer: C

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Question 14

The concept of consumer behavior is closely related to the concept of utility. Which of the following is a correct statement regarding consumer behavior?

A. Consumer behavior is determined by the price of a good or service.

B. Consumer behavior is determined by the income of a consumer.

Correct C. Consumer behavior is determined by the preferences of a consumer.

D. Consumer behavior is determined by the production \costs of a good or service.

Correct Answer: C

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Question 15

The concept of economic planning and development is closely related to the concept of economic growth. Which of the following is a correct statement regarding economic planning and development?

A. Economic planning and development is the process of increa\sing the production of goods and services.

Correct B. Economic planning and development is the process of increa\sing the s\tandard of living.

C. Economic planning and development is the process of increa\sing the income of a country.

D. Economic planning and development is the process of increa\sing the employment rate.

Correct Answer: B

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Question 16

Agricultural development is closely related to the concept of economic growth. Which of the following is a correct statement regarding agricultural development?

Correct A. Agricultural development is the process of increa\sing the production of crops.

B. Agricultural development is the process of increa\sing the production of livestock.

C. Agricultural development is the process of increa\sing the s\tandard of living.

D. Agricultural development is the process of increa\sing the income of a country.

Correct Answer: A

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Question 17

Industrial development is closely related to the concept of economic growth. Which of the following is a correct statement regarding industrial development?

Correct A. Industrial development is the process of increa\sing the production of goods.

B. Industrial development is the process of increa\sing the production of services.

C. Industrial development is the process of increa\sing the s\tandard of living.

D. Industrial development is the process of increa\sing the income of a country.

Correct Answer: A

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Question 18

Market structures are closely related to the concept of competition. Which of the following is a correct statement regarding market structures?

A. Perfect competition is characterized by a \single firm producing the entire output.

B. Monopoly is characterized by a large number of firms producing a homogeneous product.

C. Monopolistic competition is characterized by a \single firm producing a differentiated product.

Correct D. Oligopoly is characterized by a large number of firms producing a homogeneous product.

Correct Answer: D

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Question 19

The concept of opportunity \cost is closely related to the concept of scarcity. Which of the following is a correct statement regarding opportunity \cost?

A. Opportunity \cost is the \cost of producing a good or service.

B. Opportunity \cost is the benefit of producing a good or service.

C. Opportunity \cost is the \cost of not producing a good or service.

D. Opportunity \cost is the benefit of not producing a good or service.

Correct Answer: VIEW ANSWER

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Question 20

A firm's production function is given by Q = 2L^$ 1/2 $K^$ 1/2 $, where Q is output, L is labor, and K is capital. If the firm's labor and capital are fixed at 16 and 25 respectively, calculate the marginal product of labor (MPL) and marginal product of capital (MPK).

A. MPL = 1/L, MPK = 1/K

Correct B. MPL = 1/$ 2L^\( 1/2 \ $K^$ 1/2 $), MPK = 1/$ 2L^\( 1/2 \ $K^$ 1/2 $)

C. MPL = 1/L, MPK = 1/K^$ 1/2 $

D. MPL = 1/$ 2L^\( 1/2 \ $K^$ 1/2 $), MPK = 1/K

Correct Answer: B

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Question 21

A consumer's budget constraint is given by P1Q1 + P2Q2 = I, where P1 and P2 are prices, Q1 and Q2 are quantities, and I is income. If the consumer's income is $100, and prices are $5 and $10 respectively, calculate the consumer's optimal bundle of goods.

A. Q1 = 10, Q2 = 5

Correct B. Q1 = 20, Q2 = 2

C. Q1 = 15, Q2 = 3

D. Q1 = 25, Q2 = 1

Correct Answer: B

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Question 22

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 fixed at 10 and 15 respectively, calculate the marginal \cost (MC) of producing one more unit of output.

Correct A. MC = 2

B. MC = 3

C. MC = 5

D. MC = 10

Correct Answer: A

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Question 23

A consumer's indifference curve is given by U = 2Q1 + Q2, where U is utility, Q1 and Q2 are quantities of goods. If the consumer's income is $100, and prices are $5 and $10 respectively, calculate the consumer's optimal bundle of goods.

A. Q1 = 10, Q2 = 5

Correct B. Q1 = 20, Q2 = 2

C. Q1 = 15, Q2 = 3

D. Q1 = 25, Q2 = 1

Correct Answer: B

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Question 24

A firm's production function is given by Q = 2L^$ 1/2 $K^$ 1/2 $, where Q is output, L is labor, and K is capital. If the firm's labor and capital are fixed at 16 and 25 respectively, calculate the average product of labor (APL) and average product of capital (APK).

A. APL = 1/L, APK = 1/K

Correct B. APL = 1/$ 2L^\( 1/2 \ $K^$ 1/2 $), APK = 1/$ 2L^\( 1/2 \ $K^$ 1/2 $)

C. APL = 1/L, APK = 1/K^$ 1/2 $

D. APL = 1/$ 2L^\( 1/2 \ $K^$ 1/2 $), APK = 1/K

Correct Answer: B

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Question 25

A firm's revenue function is given by R = 100Q - 2Q^2, where R is revenue and Q is quantity. If the firm's quantity is fixed at 10, calculate the marginal revenue (MR) and marginal \cost (MC).

Correct A. MR = 100 - 4Q, MC = 2Q

B. MR = 100 - 4Q, MC = 100 - 2Q

C. MR = 100 - 2Q, MC = 100 - 4Q

D. MR = 100 - 2Q, MC = 2Q

Correct Answer: A

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