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Secondary 4 Principles of Accounts Practice Paper 3

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Questions

Secondary 4 Principles of Accounts Quiz - Inventory Costing

Name: __________________________ Class: __________ Date: __________
Score: _________ / 40 Duration: 45 Minutes

Instructions:

Answer all 20 questions.
Show all workings clearly. Marks are awarded for method.
Round monetary values to 2 decimal places unless otherwise stated.
This quiz covers Inventory Valuation (FIFO, AVCO), Inventory Errors, and Inventory Ratios.

Section A: Multiple Choice & Short Concepts (10 Marks)

Answer all questions. Each question carries 1 mark.

1. Which accounting concept requires inventory to be valued at the lower of cost and net realisable value? A) Consistency B) Prudence C) Accruals D) Going Concern

2. In a period of rising prices, which inventory valuation method will result in the highest closing inventory value? A) FIFO B) AVCO (Weighted Average) C) LIFO (if permitted) D) Specific Identification

3. If closing inventory is overstated by $500, what is the effect on the Gross Profit for the year? A) Understated by$ 500 B) Overstated by $500 C) No effect D) Overstated by$ 1,000

4. Calculate the Cost of Sales given: Opening Inventory $2,000; Purchases$ 15,000; Carriage Inwards $500; Closing Inventory$ 3,000. A) $14,000 B)$ 14,500 C) $15,000 D)$ 13,500

5. Which of the following costs should not be included in the cost of inventory? A) Import duties B) Carriage inwards C) Carriage outwards to customers D) Cost of conversion

6. Net Realisable Value (NRV) is defined as: A) Selling Price less Cost of Sales B) Estimated Selling Price less estimated costs to complete and sell C) Historical Cost less Depreciation D) Market Value plus Profit Margin

7. If the Inventory Turnover rate increases from 5 times to 8 times, this generally indicates: A) Inventory is moving slower B) Higher risk of obsolescence C) Inventory is moving faster D) Sales have decreased

8. Under the AVCO (periodic) method, when is the weighted average cost per unit calculated? A) After every purchase B) After every sale C) At the end of the accounting period D) At the beginning of the accounting period

9. An error where opening inventory was understated will result in: A) Current year profit being understated B) Current year profit being overstated C) No effect on current year profit D) Next year's profit being overstated

10. Which formula correctly calculates Average Inventory? A) (Opening Inventory + Closing Inventory) × 2 B) (Opening Inventory + Closing Inventory) ÷ 2 C) Opening Inventory + Purchases - Closing Inventory D) Closing Inventory - Opening Inventory

Section B: Structured Calculations (20 Marks)

Answer all questions. Show clear workings.

11. FIFO Valuation XYZ Trading had the following transactions for Product X in June:

June 1: Opening Inventory: 100 units @ $10.00
June 5: Purchased: 200 units @ $12.00
June 12: Sold: 150 units
June 20: Purchased: 100 units @ $14.00
June 28: Sold: 180 units

Calculate the value of the Closing Inventory at 30 June using the FIFO method. [3]

Answer space

12. AVCO Valuation Using the same data from Question 11, calculate the value of the Closing Inventory at 30 June using the AVCO (Periodic) method. Round unit cost to 2 decimal places. [4]

Answer space

13. Inventory Error Correction The draft Net Profit of ABC Enterprises for the year ended 31 December 2025 was $45,000. It was later discovered that:

Closing inventory was overstated by $1,200.
Opening inventory was understated by $800.

Calculate the Corrected Net Profit for the year. [3]

Answer space

14. Cost of Sales Statement Prepare the Trading Account extract (Cost of Sales section) for the year ended 31 March 2026 using the following figures:

Revenue: $80,000
Opening Inventory: $5,500
Purchases: $42,000
Purchases Returns: $1,500
Carriage Inwards: $2,000
Carriage Outwards: $1,200
Closing Inventory: $6,800

[4]

Answer space

15. Inventory Ratio Analysis DEF Ltd reported the following for the year ended 31 December 2025:

Revenue: $200,000
Gross Profit: $80,000
Opening Inventory: $12,000
Closing Inventory: $18,000

(a) Calculate the Inventory Turnover Rate (times per year). [2] (b) Calculate the Average Inventory Holding Period (days). Assume 365 days in a year. [2] (c) Comment on whether a higher or lower turnover rate is generally preferred and why. [2]

Answer space

Section C: Application & Theory (10 Marks)

16. Valuation Basis Explain why inventory is valued at the lower of cost and net realisable value. Refer to the accounting concept involved. [3]

Answer space

17. FIFO vs AVCO Decision In a period of inflation (rising prices), a business owner wants to report a higher profit to attract investors. (a) Should they choose FIFO or AVCO? [1] (b) Explain why this method results in a higher profit in this specific economic context. [2]

Answer space

18. Inventory Control State two costs associated with holding too much inventory. [2]

Answer space

19. Error Impact on Balance Sheet If closing inventory is understated, state the effect on: (a) Current Assets [1] (b) Capital/Equity [1]

Answer space

20. Consistency Concept Why is it important for a business to use the same inventory valuation method (e.g., FIFO) from one year to the next? [2]

Answer space

*** END OF QUIZ ***

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Answers

Secondary 4 Principles of Accounts Quiz - Inventory Costing (Answer Key)

Total Marks: 40

Section A: Multiple Choice & Short Concepts (10 Marks)

1. B) Prudence

Reasoning: Prudence ensures assets are not overstated. If NRV is lower than cost, we write down the asset.

2. A) FIFO

Reasoning: In rising prices, the earliest (cheaper) costs are sold first (COGS is lower), leaving the latest (more expensive) costs in Closing Inventory.

3. B) Overstated by $500

Reasoning: Closing Inventory is added to Gross Profit (or subtracted from COGS). If CI is too high, COGS is too low, and Profit is too high.

4. B) $14,500

Working: Opening ( $2,000) + Purchases ($ 15,000) + Carriage In ( $500) - Closing ($ 3,000) = $14,500.

5. C) Carriage outwards to customers

Reasoning: This is a selling expense (distribution cost), not a cost of bringing inventory to its present location/condition.

6. B) Estimated Selling Price less estimated costs to complete and sell

Reasoning: Standard definition of NRV.

7. C) Inventory is moving faster

Reasoning: Higher turnover means stock is sold and replaced more frequently.

8. C) At the end of the accounting period

Reasoning: Periodic AVCO calculates one average cost for all goods available for sale in the period. (Perpetual AVCO recalculates after every purchase).

9. B) Current year profit being overstated

Reasoning: Opening Inventory is part of COGS (added). If Opening Inv is understated (too low), COGS is too low, making Profit too high (overstated).

10. B) (Opening Inventory + Closing Inventory) ÷ 2

Section B: Structured Calculations (20 Marks)

11. FIFO Valuation [3 Marks]

Step 1: Determine Units in Closing Inventory
- Total Units Available: 100 (Op) + 200 (Pur) + 100 (Pur) = 400 units.
- Total Units Sold: 150 + 180 = 330 units.
- Closing Units: 400 - 330 = 70 units.
Step 2: Value Closing Inventory (FIFO)
- Under FIFO, closing inventory consists of the most recent purchases.
- The last purchase was June 20: 100 units @ $14.00.
- We have 70 units left, so all come from this batch.
- Calculation: $70 \text{ units} \times \$ 14.00 = $980$.

Answer: $980 (1 mark for correct units, 1 mark for identifying correct batch, 1 mark for final value)

12. AVCO (Periodic) Valuation [4 Marks]

Step 1: Calculate Total Cost of Goods Available for Sale
- Op Inv: $100 \times \$ 10.00 = $1,000$
- Jun 5 Pur: $200 \times \$ 12.00 = $2,400$
- Jun 20 Pur: $100 \times \$ 14.00 = $1,400$
- Total Cost = $\$ 1,000 + $2,400 + $1,400 = $4,800$
Step 2: Calculate Total Units Available
- $100 + 200 + 100 = 400$ units.
Step 3: Calculate Weighted Average Unit Cost
- $\$ 4,800 / 400 \text{ units} = $12.00$ per unit.
Step 4: Value Closing Inventory
- Closing Units = 70 units (from Q11).
- Value = $70 \times \$ 12.00 = $840$.

Answer: $840 (1 mark for total cost, 1 mark for total units, 1 mark for avg cost, 1 mark for final value)

13. Inventory Error Correction [3 Marks]

Draft Net Profit: $45,000
Adjustment 1: Closing Inventory Overstated by $1,200
- Effect: Profit was overstated. Must deduct.
- Adjustment: $- \$ 1,200$
Adjustment 2: Opening Inventory Understated by $800
- Effect: COGS was understated (Opening Inv is added to COGS). Profit was overstated. Must deduct.
- Wait, let's re-verify logic:
  - $COGS = Op + Purch - Cl$ .
  - If Op is understated (too low), COGS is too low.
  - If COGS is too low, Profit is too high (Overstated).
  - Therefore, we must deduct $800 to correct it.
- Adjustment: $- \$ 800$
Calculation:
- $45,000 - 1,200 - 800 = 43,000$ .

Answer: $43,000 (1 mark for correct direction of Cl Inv adj, 1 mark for correct direction of Op Inv adj, 1 mark for final answer)

14. Cost of Sales Statement [4 Marks]

ABC Enterprises Trading Account Extract for the year ended 31 March 2026

	$	$
Revenue		80,000
Less Cost of Sales:
Opening Inventory	5,500
Add: Purchases	42,000
Less: Purchases Returns	(1,500)
Add: Carriage Inwards	2,000
Cost of Goods Available for Sale	48,000
Less: Closing Inventory	(6,800)
Cost of Sales		(41,200)
Gross Profit		38,800

Note: Carriage Outwards ($1,200) is an operating expense, excluded from Cost of Sales. (1 mark for correct Purchases net of returns, 1 mark for adding Carriage In, 1 mark for correct COGS calculation, 1 mark for format/labels)

15. Inventory Ratio Analysis [6 Marks]

(a) Inventory Turnover Rate [2 Marks]

$COGS = Revenue - Gross Profit = 200,000 - 80,000 = 120,000$ .
$Average Inventory = (12,000 + 18,000) / 2 = 15,000$ .
$Turnover = 120,000 / 15,000 = \mathbf{8 \text{ times}}$ .

(b) Average Inventory Holding Period [2 Marks]

$365 \text{ days} / 8 \text{ times} = \mathbf{45.6 \text{ days}}$ (or 45.63 days).

(c) Comment [2 Marks]

Generally, a higher turnover rate is preferred.
Reason: It indicates efficient inventory management, lower holding costs, and reduced risk of obsolescence or spoilage. It also implies better cash flow as cash is tied up in stock for less time.

Section C: Application & Theory (10 Marks)

16. Valuation Basis [3 Marks]

Inventory is valued at the lower of cost and NRV due to the Prudence Concept (1 mark).
This concept states that assets should not be overstated (1 mark).
If the selling price (NRV) falls below cost, the business expects a loss. Prudence requires this loss to be recognized immediately by writing down the inventory value, rather than waiting until the sale occurs (1 mark).

17. FIFO vs AVCO Decision [3 Marks] (a) Choice: FIFO (1 mark). (b) Explanation: In a period of rising prices (inflation), FIFO assumes the oldest (cheaper) units are sold first. This results in a lower Cost of Sales. Since $Profit = Revenue - COGS$ , a lower COGS leads to a higher Gross Profit (2 marks).

18. Inventory Control Costs [2 Marks] Any two of the following:

Storage/Warehousing costs (rent, electricity).
Insurance costs.
Risk of obsolescence/spoilage/theft.
Opportunity cost of capital tied up in stock. (1 mark each)

19. Error Impact on Balance Sheet [2 Marks] If Closing Inventory is Understated: (a) Current Assets: Understated (1 mark). (b) Capital/Equity: Understated (because Profit is understated) (1 mark).

20. Consistency Concept [2 Marks]

Using the same method allows for comparability of financial statements over time (1 mark).
It ensures that changes in profit are due to operational performance rather than changes in accounting policies, making trend analysis meaningful for users (1 mark).