JAMB Past Questions

JAMB Commerce 2012
Questions & Answers

20 questions · Correct answers highlighted · 20 with explanations

Explanations reviewed August 2026

Focused heavily on numerical problem-solving and business finance, this 2012 paper challenges candidates to apply commercial formulas across various scenarios. The questions regularly address core themes such as profitability ratios and markup calculations, the functions of banking institutions and central banks, trade restrictions and quotas, and transportation management. You will benefit most from this practice session by working through the math step-by-step and reading through every explanation to reinforce your mastery of financial analysis and trade practices.

20 Total Questions
2012 Exam Year
20 With Explanations

Topics in this paper

Business Finance and Accounting (13) Commercial Documents and Trade (4) Transport and Warehousing (3) Marketing and Advertising (3) Management and Organization (3) Banking and Monetary Policy (3) International Trade and Exchange (3) Business Ownership Forms (2) Consumer Protection and Regulation (2) Market Structures and Pricing (2) Insurance and Risk Management (1) Stock Exchange and Capital (1)
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1
Question 1 of 20
JAMB · Commerce · 2012

A retailer bought goods for ₦50,000 and sold them for ₦75,000. Calculate the gross profit.

A. ₦50,000
B. ₦25,000
C. ₦75,000
D. ₦125,000
Explanation

Option C or D could be selected if the selling price or total sum is mistaken for the profit itself. Gross profit is calculated by subtracting the cost price of ₦50,000 from the selling price of ₦75,000, which yields ₦25,000. Common mistake: reporting the selling price or the sum of both values instead of finding their difference.

2
Question 2 of 20
JAMB · Commerce · 2012

Which of the following is a primary function of a chamber of commerce?

A. Setting prices for goods and services
B. Regulating business activities
C. Promoting the interests of its member businesses
D. Providing financial assistance to startups
Explanation

Options like setting prices or regulating businesses might look tempting if you confuse a chamber of commerce with a government regulatory agency. To find the correct choice, look at how business groups operate: advocacy and networking are used to boost and protect the interests of their member businesses. Common mistake: Confusing private business associations with government regulatory bodies.

3
Question 3 of 20
JAMB · Commerce · 2012

If the cost of goods sold is ₦120,000 and the gross profit margin is 25%, calculate the net sales revenue.

A. ₦160,000
B. ₦90,000
C. ₦30,000
D. ₦150,000
Explanation

Options like ₦90,000 might appeal if you mistakenly subtract the margin percentage directly from the cost of goods sold. To arrive at the correct sales revenue (S), set up the formula where the gross profit margin is equal to [(S - ₦120,000) / S] × 100 = 25%, which simplifies to 0.75S = ₦120,000, giving a total net sales revenue of ₦160,000. Common mistake: Subtracting the percentage margin directly from the cost instead of applying the margin formula.

4
Question 4 of 20
JAMB · Commerce · 2012

A cooperative society is primarily formed to:

A. Compete with private businesses
B. Serve the mutual interests of its members
C. Maximize profits for its shareholders
D. Provide employment opportunities
Explanation

An option like maximizing profits for shareholders might seem plausible if you mistakenly treat a cooperative like a standard joint-stock corporation. By focusing on collective benefits, cooperatives serve members' mutual interests, such as providing affordable goods or services. Common mistake: Assuming cooperatives share the same profit-maximizing goals as standard corporations.

5
Question 5 of 20
JAMB · Commerce · 2012

A trader takes a cash discount of 5% on an invoice of ₦20,000. Calculate the amount of the discount.

A. ₦500
B. ₦1,000
C. ₦19,000
D. ₦21,000
Explanation

A distractor like ₦19,000 is attractive if you calculate the remaining invoice balance rather than the discount itself. Finding the cash discount requires multiplying the 5% rate by the ₦20,000 invoice amount, yielding 0.05 × ₦20,000, which equals ₦1,000. Common mistake: Providing the final discounted price instead of the discount amount.

6
Question 6 of 20
JAMB · Commerce · 2012

Which of the following is NOT a type of warehouse?

A. Public warehouse
B. Private warehouse
C. Bonded warehouse
D. Retail outlet
Explanation

Options like public or bonded warehouses might confuse you if you lump all commercial facilities together. Retail outlets sell goods to consumers, which separates them from warehouses used strictly for storage. Common mistake: Confusing retail selling points with storage facilities.

7
Question 7 of 20
JAMB · Commerce · 2012

If a business has current assets of ₦80,000 and current liabilities of ₦40,000, what is the current ratio?

A. 1:1
B. 0.5:1
C. 2:1
D. 1:2
Explanation

An option like 1:2 might look correct if you accidentally invert the formula components. Dividing the current assets of ₦80,000 by the current liabilities of ₦40,000 yields a ratio of 2:1. Common mistake: Inverting assets and liabilities when calculating financial ratios.

8
Question 8 of 20
JAMB · Commerce · 2012

Which of the following is a key advantage of using air transport for goods?

A. Suitability for bulky goods
B. Low cost per unit
C. High carrying capacity
D. Speed and efficiency for urgent deliveries
Explanation

An option like low cost per unit might seem reasonable if you overlook the actual pricing structure of cargo logistics. Air transport is fast and efficient for urgent deliveries, despite high costs. Common mistake: Assuming air freight is an economical choice for all cargo types.

9
Question 9 of 20
JAMB · Commerce · 2012

Calculate the simple interest on a loan of ₦10,000 at 10% per annum for 3 years.

A. ₦13,000
B. ₦3,000
C. ₦1,000
D. ₦300
Explanation

An option like ₦13,000 might be picked if you incorrectly add the principal to the interest instead of calculating the interest alone. Simple interest is found by multiplying ₦10,000 by the 0.10 rate and the 3 years, resulting in ₦3,000. Common mistake: Adding the principal to the final interest total.

10
Question 10 of 20
JAMB · Commerce · 2012

Which of the following is a characteristic of a public corporation?

A. Limited liability for its owners
B. Formed by a special act of parliament
C. Owned and controlled by private individuals
D. Shares are not traded on the stock exchange
Explanation

An option stating that shares are not traded on the stock exchange might tempt you because public corporations are state-owned, but that is not their defining formative characteristic. Public corporations are formed by parliamentary acts to provide public services. Common mistake: Confusing private companies with government-backed corporate entities.

11
Question 11 of 20
JAMB · Commerce · 2012

A bill of exchange is primarily used for:

A. Recording credit sales
B. Making cash payments
C. Obtaining short-term financing
D. Transferring ownership of goods
Explanation

An option like recording credit sales might seem plausible if you confuse commercial documents with ledger entries. A bill of exchange facilitates short-term credit by ordering future payment. Common mistake: Confusing financial instruments with basic accounting ledger records.

12
Question 12 of 20
JAMB · Commerce · 2012

If the premium on an insurance policy is ₦2,500 per annum, what is the quarterly premium?

A. ₦833.33
B. ₦625
C. ₦500
D. ₦10,000
Explanation

An option like ₦10,000 might look right if you multiply the annual amount instead of dividing it. Because there are four quarters in a year, finding the quarterly premium requires dividing ₦2,500 by 4, which equals ₦625. Common mistake: Multiplying the annual figure instead of dividing by the number of quarters.

13
Question 13 of 20
JAMB · Commerce · 2012

Which of the following is a disadvantage of advertising?

A. It can create brand loyalty
B. It informs consumers about products
C. It can increase sales volume
D. It can be expensive
Explanation

Options like increasing sales volume look appealing because they describe why firms advertise, but they represent benefits rather than drawbacks. Advertising’s high cost can be a drawback, especially for small businesses. Common mistake: Selecting a positive commercial outcome when asked for a disadvantage.

14
Question 14 of 20
JAMB · Commerce · 2012

A company's total assets are ₦500,000 and its owner's equity is ₦300,000. Calculate the total liabilities.

A. ₦800,000
B. ₦500,000
C. ₦200,000
D. ₦300,000
Explanation

An option like ₦80,000 might catch your eye if you mistakenly add assets and equity together. Total liabilities are determined by subtracting equity from assets, giving ₦500,000 - ₦300,000 = ₦200,000. Common mistake: Adding asset and equity values together instead of finding the difference.

15
Question 15 of 20
JAMB · Commerce · 2012

Which of the following is a function of management at the operational level?

A. Developing organizational policies
B. Setting long-term strategic goals
C. Assigning tasks to employees
D. Overseeing the work of supervisors
Explanation

An option like setting long-term strategic goals might look correct if you confuse upper management duties with daily floor supervision. Operational management assigns tasks to ensure daily operations run smoothly. Common mistake: Mixing up strategic executive duties with frontline operational tasks.

16
Question 16 of 20
JAMB · Commerce · 2012

If a retailer sells an item for ₦150 which cost ₦120, what is the percentage markup on cost?

A. 12.5%
B. 30%
C. 20%
D. 25%
Explanation

An option like 30% might trap you if you mistake the raw profit margin for the markup percentage. Subtracting the ₦120 cost from the ₦150 selling price gives a markup of ₦30, and dividing that by the ₦120 cost then multiplying by 100 gives 25%. Common mistake: Calculating the percentage based on the selling price instead of the cost.

17
Question 17 of 20
JAMB · Commerce · 2012

Which of the following is a key quality of a successful entrepreneur?

A. Resistance to change
B. Strong decision-making skills
C. Avoiding risks at all costs
D. Preference for routine tasks
Explanation

An option like avoiding risks at all costs sounds safe, but successful business founders must embrace calculated hazards. Entrepreneurs need strong decision-making skills to navigate risks and opportunities. Common mistake: Equating entrepreneurial success with risk avoidance.

18
Question 18 of 20
JAMB · Commerce · 2012

A business has a gross profit of ₦40,000 and operating expenses of ₦15,000. Calculate the net profit.

A. ₦15,000
B. ₦40,000
C. ₦25,000
D. ₦55,000
Explanation

An option like ₦55,000 is tempting if you mistakenly add operating expenses to the gross profit. Net profit is found by subtracting operating expenses of ₦15,000 from the gross profit of ₦40,000, leaving ₦25,000. Common mistake: Adding expenses to gross profit instead of subtracting them.

19
Question 19 of 20
JAMB · Commerce · 2012

Which of the following is a primary role of the central bank in an economy?

A. Promoting individual savings
B. Providing loans to small businesses
C. Accepting deposits from the public
D. Managing the nation's foreign exchange reserves
Explanation

An option like accepting public deposits might seem right because it involves banking, but that is a commercial bank function. The central bank manages foreign exchange reserves to stabilize currency. Common mistake: Confusing commercial bank retail services with central bank macroeconomic duties.

20
Question 20 of 20
JAMB · Commerce · 2012

If the rate of inflation is 5% per annum, an item that costs ₦100 today will likely cost how much in one year?

A. ₦95
B. ₦100
C. ₦110
D. ₦105
Explanation

An option like ₦95 might catch your attention if you mistakenly subtract the inflation rate instead of adding it. Future price is calculated by multiplying ₦100 by 1.05, yielding ₦105. Common mistake: Subtracting the inflation rate to calculate future costs.

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