O Level Principles of Accounts Practice Paper 4

<!-- TuitionGoWhere generation metadata: stage=5-2; model=deepseek/deepseek-v4-pro; model_label=DeepSeek V4 Pro; generated=2026-05-28; Sources: Stage 4-0 LLM templates, syllabus context, and Stage 2 evidence where available. -->

TuitionGoWhere Practice Paper - Principles of Accounts O-Level

TuitionGoWhere Practice Paper (AI)

Subject: Principles of Accounts (7087) Level: O-Level Paper: Practice Paper 4 Duration: 1 hour 30 minutes Total Marks: 60 Name: _________________________ Class: _________________________ Date: _________________________

---

Instructions to Candidates

1. This paper consists of four compulsory structured questions.
2. Answer all questions in the spaces provided.
3. Show all workings clearly. Marks are awarded for method.
4. Use a calculator where necessary. Round answers to two decimal places unless stated otherwise.
5. The total mark for this paper is 60.
6. Read each question carefully before you begin.

---

Question 1: Inventory Valuation Methods (15 marks)

Ahmad Electronics sells a single model of wireless headphones. The following inventory movements occurred during March 2026:

Date	Transaction	Units	Unit Cost ($)
Mar 1	Opening inventory	80	25
Mar 6	Purchases	120	28
Mar 14	Sales	90
Mar 19	Purchases	150	30
Mar 26	Sales	160
Mar 29	Purchases	60	32

(a) Using the First-In-First-Out (FIFO) method (perpetual), calculate: (i) The cost of sales for March 2026. [4 marks] (ii) The value of closing inventory as at 31 March 2026. [2 marks]

(b) Using the Weighted Average Cost (AVCO) method (perpetual), calculate: (i) The cost of sales for March 2026. [5 marks] (ii) The value of closing inventory as at 31 March 2026. [2 marks]

(c) Explain which inventory valuation method would result in a higher gross profit for March 2026 if the selling price per unit was $45 throughout the month. Justify your answer with reference to your calculations. [2 marks]

---

Question 2: Inventory Costing and Financial Statements (15 marks)

The following information relates to Bella Fashion, a clothing retailer, for the year ended 31 December 2025:

	$
Revenue	180,000
Opening inventory (1 Jan 2025)	22,000
Purchases	95,000
Carriage inwards	2,500
Purchase returns	3,000
Closing inventory (31 Dec 2025)	18,500
Selling and distribution expenses	15,000
Administrative expenses	12,000
Finance costs	1,800

Additional information:

• During a stocktake on 31 December 2025, it was discovered that inventory with a cost of $1,200 was damaged and could only be sold for$400 after incurring selling costs of $50.
• Goods costing $800, sold on 28 December 2025, were included in closing inventory in error. These goods had been correctly recorded as a sale.

(a) Calculate the cost of sales for the year ended 31 December 2025, after making all necessary adjustments. [5 marks]

(b) Prepare the Income Statement (extract showing Gross Profit and Net Profit) for the year ended 31 December 2025. [6 marks]

(c) State and explain the accounting concept that requires the damaged inventory to be valued at the lower amount. [2 marks]

(d) Explain the effect on gross profit if the error relating to goods sold on 28 December 2025 had not been discovered. [2 marks]

---

Question 3: Inventory Management and Decision-Making (15 marks)

Campus Bookstore sells textbooks and stationery to students. The following information is available for the years ended 31 December 2024 and 2025:

	2024 ($)	2025 ($)
Revenue	250,000	280,000
Cost of sales	150,000	182,000
Opening inventory	30,000	35,000
Closing inventory	35,000	48,000
Trade receivables	28,000	36,000
Trade payables	18,000	22,000
Cash at bank	12,000	8,000

(a) For both years, calculate: (i) Inventory turnover ratio (times). [2 marks] (ii) Days sales in inventory (to two decimal places). [2 marks]

(b) Comment on the inventory management of Campus Bookstore over the two years. Use your calculations from part (a) to support your answer. [3 marks]

(c) The owner is concerned about the business's liquidity position. Calculate the current ratio and quick ratio for 2025 (to two decimal places). [4 marks]

(d) Recommend two actions the business could take to improve its inventory management and liquidity. Give reasons to support each recommendation. [4 marks]

---

Question 4: Integrated Inventory Scenario (15 marks)

GreenGrocer Fresh is a sole proprietorship selling organic fruits and vegetables. The business uses the FIFO method to value inventory. The following trial balance was extracted as at 30 June 2026:

	Debit ($)	Credit ($)
Capital		60,000
Drawings	8,000
Revenue		210,000
Purchases	120,000
Opening inventory (1 July 2025)	16,000
Carriage inwards	3,000
Wages and salaries	28,000
Rent	18,000
General expenses	6,000
Equipment at cost	40,000
Accumulated depreciation – Equipment		12,000
Trade receivables	15,000
Trade payables		14,000
Cash at bank	22,000
5% Bank loan (repayable 2029)		20,000
	276,000	276,000

Additional information:

1. Closing inventory as at 30 June 2026 was valued at $19,000. However, this includes damaged goods costing$1,500 that can only be sold for $600.
2. Depreciation on equipment is to be provided at 20% per annum using the straight-line method.
3. Accrued wages at 30 June 2026 amounted to $1,200.
4. Rent prepaid at 30 June 2026 was $1,500.
5. An allowance for doubtful debts of 5% of trade receivables is to be created.
6. The bank loan interest for the year has not been paid or recorded.

(a) Calculate the adjusted closing inventory value as at 30 June 2026. [2 marks]

(b) Prepare the Income Statement for the year ended 30 June 2026. [8 marks]

(c) Prepare an extract of the Statement of Financial Position as at 30 June 2026, showing the Current Assets section only. [5 marks]

---

END OF PAPER

<!-- TuitionGoWhere generation metadata: stage=5-2; model=deepseek/deepseek-v4-pro; model_label=DeepSeek V4 Pro; generated=2026-05-28; Sources: Stage 4-0 LLM templates, syllabus context, and Stage 2 evidence where available. -->

TuitionGoWhere Practice Paper - Principles of Accounts O-Level

Answer Key and Marking Scheme (Version 4)

Total Marks: 60

---

Question 1: Inventory Valuation Methods (15 marks)

(a) FIFO Method (Perpetual)

(i) Cost of Sales for March 2026 [4 marks]

Date	Transaction	Calculation	Cost of Sales ($)
Mar 14	Sale 90 units	80 × $25 + 10 ×$28	2,000 + 280 = 2,280
Mar 26	Sale 160 units	110 × $28 + 50 ×$30	3,080 + 1,500 = 4,580
Total Cost of Sales			6,860

Marking:

• 1 mark for correct FIFO flow (oldest units sold first)
• 1 mark for correct calculation of Mar 14 sale
• 1 mark for correct calculation of Mar 26 sale
• 1 mark for correct total cost of sales

(ii) Closing Inventory as at 31 March 2026 [2 marks]

Remaining units: 80 + 120 − 90 + 150 − 160 + 60 = 160 units

From purchase date	Units	Unit Cost ($)	Value ($)
Mar 19	100	30	3,000
Mar 29	60	32	1,920
Total	160		4,920

Marking:

• 1 mark for identifying correct layers (100 from Mar 19, 60 from Mar 29)
• 1 mark for correct total value

---

(b) AVCO Method (Perpetual) [7 marks]

Date	Transaction	Calculation	AVCO per unit ($)
Mar 1	Opening	80 × $25 =$2,000	25.00
Mar 6	Purchase	(80 × $25 + 120 ×$28) ÷ 200	(2,000 + 3,360) ÷ 200 = 26.80
Mar 14	Sale 90	90 × $26.80 =$2,412	26.80
	Balance: 110 units	110 × $26.80 =$2,948
Mar 19	Purchase	(110 × $26.80 + 150 ×$30) ÷ 260	(2,948 + 4,500) ÷ 260 = 28.65 (rounded)
Mar 26	Sale 160	160 × $28.65 =$4,584	28.65
	Balance: 100 units	100 × $28.65 =$2,865
Mar 29	Purchase	(100 × $28.65 + 60 ×$32) ÷ 160	(2,865 + 1,920) ÷ 160 = 29.91 (rounded)

(i) Cost of Sales: $2,412 +$4,584 = $6,996 [5 marks]

Marking:

• 1 mark for correct AVCO after Mar 6 purchase
• 1 mark for correct Mar 14 cost of sales
• 1 mark for correct AVCO after Mar 19 purchase
• 1 mark for correct Mar 26 cost of sales
• 1 mark for correct total cost of sales

(ii) Closing Inventory: 160 units × $29.91 = **$4,785.60** [2 marks]

Marking:

• 1 mark for correct AVCO after Mar 29 purchase
• 1 mark for correct closing inventory value

---

(c) Higher Gross Profit Comparison [2 marks]

FIFO cost of sales = $6,860 AVCO cost of sales =$6,996

Total revenue = (90 + 160) × $45 = 250 ×$45 = $11,250

Method	Revenue ($)	Cost of Sales ($)	Gross Profit ($)
FIFO	11,250	6,860	4,390
AVCO	11,250	6,996	4,254

Answer: The FIFO method results in a higher gross profit ($4,390 vs$4,254). This is because, in a period of rising prices, FIFO assigns the older, lower-cost inventory to cost of sales, leaving the newer, higher-cost inventory in closing inventory. This results in a lower cost of sales and therefore a higher gross profit.

Marking:

• 1 mark for identifying FIFO as the method yielding higher gross profit
• 1 mark for correct explanation linking rising prices to lower cost of sales under FIFO

---

Question 2: Inventory Costing and Financial Statements (15 marks)

(a) Cost of Sales Calculation [5 marks]

	$
Opening inventory	22,000
Purchases	95,000
Add: Carriage inwards	2,500
Less: Purchase returns	(3,000)
Net purchases	94,500
Cost of goods available for sale	116,500
Less: Closing inventory (adjusted)	(17,650)
Cost of sales	98,850

Adjustments to closing inventory:

• Original closing inventory: $18,500
• Damaged goods adjustment: Cost $1,200, NRV =$400 − $50 =$350. Write-down = $1,200 −$350 = $850
• Goods sold in error included: Remove $800
• Adjusted closing inventory: $18,500 −$850 − $800 = **$16,850**

Correction: The adjusted closing inventory should be $18,500 −$850 − $800 =$16,850. Cost of sales = $116,500 −$16,850 = $99,650.

Marking:

• 1 mark for correct net purchases
• 1 mark for correct damaged goods write-down
• 1 mark for removing goods sold in error
• 1 mark for correct adjusted closing inventory
• 1 mark for correct cost of sales

(b) Income Statement Extract [6 marks]

Bella Fashion – Income Statement (Extract) for the year ended 31 December 2025

	$	$
Revenue		180,000
Less: Cost of Sales		(99,650)
Gross Profit		80,350
Less: Expenses:
Selling and distribution expenses	15,000
Administrative expenses	12,000
Finance costs	1,800
Total expenses		(28,800)
Net Profit		51,550

Marking:

• 1 mark for correct revenue
• 1 mark for correct cost of sales (from part a)
• 1 mark for correct gross profit
• 1 mark for listing all expenses
• 1 mark for correct total expenses
• 1 mark for correct net profit

(c) Accounting Concept [2 marks]

Prudence Concept. This concept states that assets and profits should not be overstated, and liabilities and expenses should not be understated. Inventory should be valued at the lower of cost and net realisable value (NRV). The damaged inventory has a cost of $1,200 but an NRV of only$350 ($400 −$50). Therefore, it must be written down to $350 to avoid overstating the value of inventory and overstating profit.

Marking:

• 1 mark for identifying the prudence concept
• 1 mark for explaining the lower of cost and NRV principle

(d) Effect of Error on Gross Profit [2 marks]

If the error had not been discovered, closing inventory would be overstated by $800. Since closing inventory is deducted in calculating cost of sales (Opening inventory + Purchases − Closing inventory), an overstated closing inventory results in an understated cost of sales. Therefore, **gross profit would be overstated by$800**.

Marking:

• 1 mark for identifying that closing inventory is overstated
• 1 mark for concluding that gross profit is overstated by $800

---

Question 3: Inventory Management and Decision-Making (15 marks)

(a) Inventory Ratios [4 marks]

(i) Inventory Turnover Ratio

	2024	2025
Average inventory	($30,000 +$35,000) ÷ 2 = $32,500	($35,000 +$48,000) ÷ 2 = $41,500
Cost of sales	$150,000	$182,000
Inventory turnover	$150,000 ÷$32,500 = 4.62 times	$182,000 ÷$41,500 = 4.39 times

(ii) Days Sales in Inventory

	2024	2025
Days sales in inventory	365 ÷ 4.62 = 79.00 days	365 ÷ 4.39 = 83.14 days

Marking:

• 1 mark for correct average inventory calculations
• 1 mark for correct inventory turnover ratios
• 1 mark for correct days sales in inventory for 2024
• 1 mark for correct days sales in inventory for 2025

(b) Comment on Inventory Management [3 marks]

The inventory turnover ratio has decreased from 4.62 times in 2024 to 4.39 times in 2025, while days sales in inventory has increased from 79.00 days to 83.14 days. This indicates that the business is holding inventory for a longer period before selling it, which suggests deteriorating inventory management. Possible reasons include overstocking, slower-moving inventory, or declining sales relative to inventory levels. The increase in closing inventory from $35,000 to$48,000 (a 37% increase) while cost of sales only increased by 21% supports this concern. The business should investigate whether inventory is becoming obsolete or whether purchasing policies need review.

Marking:

• 1 mark for identifying the trend (turnover decreasing, days increasing)
• 1 mark for explaining what this indicates (slower inventory movement)
• 1 mark for linking to the inventory balance increase

(c) Liquidity Ratios for 2025 [4 marks]

Current Assets (2025):

• Closing inventory: $48,000
• Trade receivables: $36,000
• Cash at bank: $8,000
• Total current assets: $92,000

Current Liabilities (2025):

• Trade payables: $22,000
• Total current liabilities: $22,000

Current Ratio = $92,000 ÷$22,000 = 4.18 : 1

Quick Ratio = ($92,000 −$48,000) ÷ $22,000 =$44,000 ÷ $22,000 = 2.00 : 1

Marking:

• 1 mark for correct current assets total
• 1 mark for correct current ratio
• 1 mark for correct quick assets (excluding inventory)
• 1 mark for correct quick ratio

(d) Recommendations [4 marks]

Recommendation 1: Implement inventory clearance sales or promotions. The business is holding inventory for over 83 days, which ties up cash. By offering discounts or promotions on slow-moving stock, the business can reduce inventory levels, improve inventory turnover, and generate cash inflows. This would reduce the days sales in inventory and improve liquidity by converting inventory into cash or receivables.

Recommendation 2: Review purchasing policies and implement better inventory forecasting. The significant increase in closing inventory suggests over-purchasing. By aligning purchases more closely with expected sales demand, the business can reduce the amount of cash tied up in inventory. This would lower the inventory balance, reduce storage costs, and improve both the quick ratio and overall liquidity position.

Marking:

• 1 mark for each valid recommendation (max 2)
• 1 mark for each clear reason linked to inventory/liquidity improvement (max 2)

---

Question 4: Integrated Inventory Scenario (15 marks)

(a) Adjusted Closing Inventory [2 marks]

	$
Closing inventory (per stocktake)	19,000
Less: Write-down on damaged goods ($1,500 −$600)	(900)
Adjusted closing inventory	18,100

Marking:

• 1 mark for correct write-down calculation
• 1 mark for correct adjusted closing inventory

(b) Income Statement [8 marks]

GreenGrocer Fresh – Income Statement for the year ended 30 June 2026

	$	$
Revenue		210,000
Less: Cost of Sales:
Opening inventory	16,000
Purchases	120,000
Add: Carriage inwards	3,000
	123,000
Less: Closing inventory	(18,100)
Cost of sales		(120,900)
Gross Profit		89,100
Less: Expenses:
Wages and salaries ($28,000 +$1,200)	29,200
Rent ($18,000 −$1,500)	16,500
General expenses	6,000
Depreciation – Equipment (20% × $40,000)	8,000
Allowance for doubtful debts (5% × $15,000)	750
Bank loan interest (5% × $20,000)	1,000
Total expenses		(61,450)
Net Profit		27,650

Marking:

• 1 mark for correct revenue
• 1 mark for correct cost of sales (using adjusted closing inventory)
• 1 mark for correct gross profit
• 1 mark for correct wages (with accrual)
• 1 mark for correct rent (with prepayment)
• 1 mark for correct depreciation
• 1 mark for correct allowance for doubtful debts
• 1 mark for correct bank loan interest and correct net profit

(c) Statement of Financial Position Extract – Current Assets [5 marks]

GreenGrocer Fresh – Statement of Financial Position (Extract) as at 30 June 2026

Current Assets	$	$
Inventory		18,100
Trade receivables	15,000
Less: Allowance for doubtful debts	(750)
		14,250
Prepaid rent		1,500
Cash at bank		22,000
Total Current Assets		55,850

Marking:

• 1 mark for correct inventory value
• 1 mark for correct trade receivables net of allowance
• 1 mark for including prepaid rent
• 1 mark for correct cash at bank
• 1 mark for correct total current assets

---

END OF ANSWER KEY