22 reviewed questions with answers and explanations.
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Question 2
Scale of preference refers to
- Consumers preference for luxurious goods
- The household monthly income
- List of goods and services in order of priority
- Budget preparation without paying due regard to priority
Answer and explanation
C: List of goods and services in order of priority
A scale of preference ranks goods or wants in order of priority. It helps a household choose which wants to satisfy first when resources are limited.
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Question 6
Population (million) and food production (million tonnes) are respectively50 and220;70 and210;90 and225;100 and275. Using maximum food output per person as the criterion, what is the optimum population in millions?
- 50
- 70
- 90
- 100
Answer and explanation
A: 50
Food output per person is220/50=4.4,210/70=3,225/90=2.5 and275/100=2.75 tonnes. Among the listed populations,50 million gives the highest output per person.
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Question 9
By definition, variable cost (VC) is related to total costs (TC) and fixed cost (FC) by the equation.
- VC = TC + FC
- VC = TC - FC
- VC = TC/FC
- VC = (TC)(FC)
Answer and explanation
B: VC = TC - FC
Total cost is fixed cost plus variable cost. Subtracting fixed cost from total cost therefore gives variable cost: VC=TC−FC.
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Question 10
The higher the price fo capital relative tot he price of labour, the more production techniques should be
- Labour-intensive
- Capital-intensive
- Fixed
- Technology-intensive
Answer and explanation
A: Labour-intensive
When capital becomes more expensive relative to labour, cost-minimising firms have an incentive to substitute labour for capital where technology permits. Production becomes more labour-intensive.
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Question 13
The U-shape of the long-run average cost curve can be explained by
- Law of increasing returns
- Law of constant returns
- Law of diminishing returns
- Concepts of economies and diseconomies of scale
Answer and explanation
D: Concepts of economies and diseconomies of scale
Long-run average cost can fall because of economies of scale and later rise because of diseconomies of scale. Together they explain the conventional U-shaped long-run curve.
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Question 14
A singlet firm’s short-run total costs at outputs0,10,20,30 and40 are N1000,N1200,N1400,N1600 andN1800 respectively. What is variable cost per unit at an output of20?
- N1000
- N400
- N70
- N20
Answer and explanation
D: N20
Fixed cost isN1000, the cost at zero output. At20 singlets, variable cost is1400−1000=N400. Dividing by20 gives average variable cost ofN20 per singlet.
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Question 16
If demand is relatively inelastic and sellers are able ro raise the price of their commodity, then there will be a
- Fall in both quantity demanded and total revenue
- Fall in the quantity demanded and a rise in total revenue
- fall in the quantity demanded and a rise in marginal revenue
- rise in both the quantity demanded and the marginal revenue
Answer and explanation
B: Fall in the quantity demanded and a rise in total revenue
With inelastic demand, a price increase causes a smaller proportionate fall in quantity demanded. Price times quantity therefore rises, so total revenue increases while quantity demanded falls.
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Question 25
The types of business finance that entitles the holder to a fixed rate of dividend is
- Preferred stock
- Common stock
- Debenture
- Bank loan
Answer and explanation
A: Preferred stock
Preference shares commonly specify a dividend rate and receive priority over ordinary shares. Debt securities and bank loans pay interest rather than dividends.
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Question 26
Farmer’s income may fall if they produce more cash crops for export because
- Foreign demand is inelastic
- The price of the crops will rise
- Of domestic currency depreciation
- Of export duties
Answer and explanation
A: Foreign demand is inelastic
If export demand is inelastic, a larger supply can lower the export price proportionately more than quantity sold rises. Total sales revenue can then fall despite greater production.
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Question 34
Monetization refers to the ratio of
- Total transactions to monetary transactions
- Monetary assets to total assets
- Monetary transactions to total transactions
- Money in circulation to total income
Answer and explanation
C: Monetary transactions to total transactions
Monetisation describes the extent to which transactions use money. The share of monetary transactions in total transactions expresses that extent as a ratio.
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Question 35
The best way to reduce the supply of money in the economy is to
- Increase the liquidity ratio
- Increase the number of bank notes and cheques produced
- Decrease treasury bills
- Liberalize access to credit
Answer and explanation
A: Increase the liquidity ratio
A higher required liquidity ratio can constrain banks’ lending capacity and monetary expansion. Liberalising credit or producing more notes does not provide the same contractionary mechanism.
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Question 36
Under the narrow-money definition, the money stock includes cash
- And current-account balances owned by the non-bank public
- Owned by banks and the non-bank public
- And current-account balances owned by banks and the non-bank public
- Owned by banks, the government and the non-bank public
Answer and explanation
A: And current-account balances owned by the non-bank public
Narrow money includes currency held by the non-bank public and their transferable current-account deposits. Currency held inside banks is excluded to avoid counting the same money twice.
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Question 37
To reduce the high rate of inflation in the economy, Government should
- Increase taxes and have a budget surplus
- Increase taxes and have a budget deficit
- Decrease taxes and have budget deficits
- Decrease taxes and have a balanced budget
Answer and explanation
A: Increase taxes and have a budget surplus
Higher taxes and a budget surplus withdraw spending power from the economy. Other conditions unchanged, this contractionary fiscal stance can reduce demand-driven inflation.
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Question 39
The objective of public finance is to promote
- Full employment, national income and price stability
- Government revenue drive and expenditure to as high a level as possible
- The expansion of government social- services
- Government revenue drive and minimise government expenditure
Answer and explanation
A: Full employment, national income and price stability
Public finance can support employment, national income and price stability through government revenue and spending decisions. Maximising revenue or expenditure for its own sake is not the general objective.
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Question 40
An account from which allocations are made to the three tiers of government in Nigeria is called the
- National Income Account
- Public Sector Account
- Federation Account
- National Revenue Mobilization Account
Answer and explanation
C: Federation Account
The Federation Account receives qualifying revenues for allocation among Nigeria’s federal, state and local governments. It is distinct from the statistical national-income accounts.
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Question 41
In year1, GNP at current prices is N20000 million and population is20 million. In year2, GNP is N27000 million and population is24 million. What is the percentage increase in GNP?
- 3.5%
- 14.0%
- 20.0%
- 35.0%
Answer and explanation
D: 35.0%
GNP rises by27000−20000=7000 million naira. Relative to the initial20000 million, the increase is7000/20000×100=35%. These figures measure nominal rather than inflation-adjusted growth.
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Question 42
In year1, GNP at current prices is N20000 million and population is20 million. In year2, GNP is N27000 million and population is24 million. What is GNP per person in years1 and2 respectively?
- N2000.00; N1000.00
- N1125.0; N2000.00
- N1000.00; N2000.00
- N1000.00; N1125.00
Answer and explanation
D: N1000.00; N1125.00
Year1 GNP per person is20000/20=N1000. Year2 is27000/24=N1125. The million units cancel when income is divided by population.
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Question 43
In national income accounting, aggregate saving in any year is defined as
- All disposable income not spent on con sumption
- All savings deposits in all banks during the year
- All savings and time deposits in all banks during the year
- The value of inventory change for the year
Answer and explanation
A: All disposable income not spent on con sumption
Saving is disposable income not used for current consumption. It is a flow over the period and is not identical to the stock of deposits held in banks.
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Question 44
Which of the following combination is a veritable set of development indicators?
- Growth of government expenditure and imports
- Growth of population and national income
- High fertility, literacy and school enrolment rates
- Low infant mortality and high per capita income and literacy rate
Answer and explanation
D: Low infant mortality and high per capita income and literacy rate
Low infant mortality, higher income per person and high literacy together indicate health, material and educational progress. Population or spending growth alone does not establish improved development.
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Question 46
If a country has a balance of payment crisis, which of the following measures can best bring about an improvement in the short run?
- Large-scale importation on foreign goods
- Investments in capital market abroad
- Large-scale export of locally made goods
- Repayment of debt to her creditors
Answer and explanation
C: Large-scale export of locally made goods
Additional export sales bring foreign exchange into the country. Importing, investing abroad and repaying foreign debt instead use foreign currency.
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Question 48
When a foreigner on a visit to Nigeria, pays for hotel accommodation and meals with some foreign cur rency, the amount paid should be recorded in Nigeria’s balance of payments as an item of
- Nigeria’s invisible export trade
- Nigeria’s import trade
- Nigeria’s visible trade
- Foreign capital inflow into Nigeria
Answer and explanation
A: Nigeria’s invisible export trade
A non-resident buying accommodation and meals purchases Nigerian services. These travel receipts are invisible exports, rather than merchandise exports or capital investment.
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Question 50
One of the gains by member states of the Economic Community of West African States is
- Monocultural dependency
- Trade creation
- Trade inversion
- Economic independence
Answer and explanation
B: Trade creation
Lower barriers between regional members can create trade and expand the market available to their producers. This is a potential gain from economic integration.
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