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Secondary 4 Principles of Accounts Inventory Costing Quiz

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Secondary 4 Principles of Accounts AI Generated Generated by Gemma 4 31B Updated 2026-06-03

Questions

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Secondary 4 Principles of Accounts Quiz - Inventory Costing

Name: ____________________
Class: ____________________
Date: ____________________
Score: ________ / 50

Duration: 60 Minutes
Total Marks: 50

Instructions:

  • Answer all questions in the spaces provided.
  • Show all workings clearly for calculation questions.
  • Use a calculator where necessary.
  • Round all ratio calculations to 2 decimal places.

Section A: Conceptual Understanding (Questions 1-5)

  1. State the general basis used for the valuation of inventory at the end of the accounting period. (1) \


  2. Explain the accounting concept of Prudence in the context of inventory valuation. (2) \


    \


  3. Define "Net Realisable Value" (NRV). (2) \


    \


  4. Identify whether the following item is a capital expenditure or a revenue expenditure: "Cost of transporting inventory from the supplier to the business warehouse." (1) \


  5. State one advantage of using the FIFO (First-In, First-Out) method of inventory valuation. (1) \



Section B: Application and Calculation (Questions 6-15)

  1. A business has the following inventory data:

    • Opening Inventory: $4,500
    • Purchases during the year: $22,000
    • Purchase Returns: $1,200
    • Carriage Inwards: $800
    • Closing Inventory: 3,100CalculatetheCostofSalesfortheyear.(3)   Answer:3,100 Calculate the **Cost of Sales** for the year. (3) \ \ \ Answer: ____________________
  2. Using the data from Question 6, if the total Revenue for the year was 45,000,calculatetheGrossProfit.(2)   Answer:45,000, calculate the **Gross Profit**. (2) \ \ \ Answer: ____________________

  3. A business has a Cost of Sales of 120,000.Theaverageinventoryfortheyearis120,000. The average inventory for the year is 15,000. Calculate the Inventory Turnover Rate. (2)


    Answer: ____________________ times

  4. A firm's inventory turnover rate is 4 times per year. How many days, on average, does the firm hold its inventory? (2)


    Answer: ____________________ days

  5. A batch of electronics has a cost price of 1,200.Duetoanewermodelbeingreleased,theestimatedsellingpriceisnow1,200. Due to a newer model being released, the estimated selling price is now 1,000 and the cost to refurbish the item for sale is 150.StatethevalueatwhichthisinventoryshouldberecordedintheStatementofFinancialPosition.(2)  Answer:150. State the value at which this inventory should be recorded in the Statement of Financial Position. (2) \ \ Answer: ____________________

  6. A business uses the FIFO method. It has the following transactions for a single product:

    • Jan 1: Opening stock 10 units @ $5 each
    • Jan 10: Purchased 20 units @ $6 each
    • Jan 20: Sold 15 units Calculate the value of the Closing Inventory as at Jan 31. (3)


      Answer: $____________________
  7. Using the same data as Question 11, calculate the value of the Closing Inventory if the business had used the AVCO (Weighted Average Cost) method. (3)


    Answer: $____________________

  8. A business discovered that its closing inventory on 31 December 2023 was overstated by $2,000. State the effect of this error on the Net Profit for the year ended 31 December 2023. (1)

    Answer: ___________________________________________________________________

  9. Following Question 13, state the effect of the same error on the Current Assets in the Statement of Financial Position as at 31 December 2023. (1)

    Answer: ___________________________________________________________________

  10. A business has the following data:

    • Cost of Sales: $80,000
    • Opening Inventory: $12,000
    • Closing Inventory: $8,000 Calculate the Inventory Turnover Rate. (2)


      Answer: ____________________ times

Section C: Analysis and Evaluation (Questions 16-20)

  1. Compare the effect of FIFO and AVCO on the value of closing inventory during a period of rising prices. Which method results in a higher closing inventory value? (3)
    \


    \


  2. Explain how a higher closing inventory value affects the Gross Profit of a business. (3)
    \


    \


  3. Firm X has an inventory turnover rate of 12 times, while Firm Y has a rate of 3 times. Both are in the same industry. Comment on the efficiency of Firm X compared to Firm Y. (4)
    \


    \


  4. A business is considering switching from AVCO to FIFO during a period of falling prices. Explain the likely effect on the Net Profit. (4)
    \


    \


  5. State two non-accounting factors that a manager should consider when deciding the optimal level of inventory to hold. (4)
    \




    2. ________________________________________________________________________

Answers

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

1. Basis of Valuation

  • Lower of cost and net realisable value (NRV). (1)

2. Prudence Concept

  • The principle that assets and income should not be overstated, and liabilities and expenses should not be understated. (1)
  • In inventory, this ensures that if the market value drops below cost, the loss is recognized immediately. (1)

3. Net Realisable Value (NRV)

  • The estimated selling price in the ordinary course of business (1) minus the estimated costs of completion and the estimated costs necessary to make the sale. (1)

4. Expenditure Classification

  • Capital expenditure (as it is a direct cost of bringing the inventory to its present location and condition). (1)

5. FIFO Advantage

  • Closing inventory is valued at the most recent prices, making the Statement of Financial Position more reflective of current market values. (1)

6. Cost of Sales Calculation

  • Working: 4,500(Op)+4,500 (Op) + 22,000 (Pur) - 1,200(Ret)+1,200 (Ret) + 800 (CI) - $3,100 (Cl)
  • Calculation: 26,10026,100 - 3,100 = $23,000. (3)
  • Answer: $23,000

7. Gross Profit Calculation

  • Working: 45,000(Revenue)45,000 (Revenue) - 23,000 (COS)
  • Answer: $22,000. (2)

8. Inventory Turnover Rate

  • Formula: 120,000/120,000 / 15,000
  • Answer: 8 times. (2)

9. Inventory Holding Period

  • Formula: 365 days / 4 times
  • Answer: 91.25 days. (2)

10. NRV Valuation

  • Cost = 1,200;NRV=1,200; NRV = 1,000 - 150=150 = 850.
  • Lower of 1,200and1,200 and 850 is $850. (2)
  • Answer: $850

11. FIFO Closing Inventory

  • Total units = 30. Sold = 15. Remaining = 15.
  • FIFO assumes first 10 units (5)and5unitsfromthenextbatch(5) and 5 units from the next batch (6) were sold.
  • Remaining: 15 units from the Jan 10 batch @ $6 each.
  • Calculation: 15 * 6=6 = 90. (3)
  • Answer: $90

12. AVCO Closing Inventory

  • Total Cost = (10 * 5) + (20 * 6) = 50+50 + 120 = $170.
  • Total Units = 30.
  • Average Cost = 170/30=170 / 30 = 5.666...
  • Remaining units = 15.
  • Calculation: 15 * 5.666...=5.666... = 85. (3)
  • Answer: $85

13. Effect on Profit

  • Closing inventory overstated \rightarrow Cost of Sales understated \rightarrow Net Profit overstated. (1)
  • Answer: Net Profit is overstated.

14. Effect on Assets

  • Closing inventory is a current asset. (1)
  • Answer: Current Assets are overstated.

15. Inventory Turnover Rate

  • Average Inventory = (12,000+12,000 + 8,000) / 2 = $10,000.
  • Turnover = 80,000/80,000 / 10,000 = 8 times. (2)
  • Answer: 8 times.

16. FIFO vs AVCO (Rising Prices)

  • FIFO assumes the oldest (cheaper) items are sold first. (1)
  • Therefore, the closing inventory consists of the newest (more expensive) items. (1)
  • FIFO results in a higher closing inventory value than AVCO. (1)

17. Closing Inventory and Gross Profit

  • Closing inventory is subtracted from the cost of goods available for sale to find Cost of Sales. (1)
  • A higher closing inventory value leads to a lower Cost of Sales. (1)
  • A lower Cost of Sales results in a higher Gross Profit. (1)

18. Efficiency Commentary

  • Firm X (12 times) has a much higher turnover than Firm Y (3 times). (1)
  • This indicates Firm X sells and replaces its stock much faster. (1)
  • Firm X is more efficient in managing its inventory, reducing holding costs and the risk of obsolescence. (2)

19. Falling Prices Switch (AVCO to FIFO)

  • In falling prices, the newest stock is the cheapest. (1)
  • FIFO assumes the oldest (more expensive) stock is sold first. (1)
  • This leads to a higher Cost of Sales compared to AVCO. (1)
  • Consequently, the Net Profit
<stage5_quiz_answers_md>
# Answer Key - Secondary 4 Principles of Accounts Quiz (Inventory Costing)

**1. Basis of Valuation**
- Lower of cost and net realisable value (NRV). (1)

**2. Prudence Concept**
- The principle that assets and income should not be overstated, and liabilities and expenses should not be understated. (1)
- In inventory, this ensures that if the market value drops below cost, the loss is recognized immediately. (1)

**3. Net Realisable Value (NRV)**
- The estimated selling price in the ordinary course of business (1) minus the estimated costs of completion and the estimated costs necessary to make the sale. (1)

**4. Expenditure Classification**
- Capital expenditure (as it is a direct cost of bringing the inventory to its present location and condition). (1)

**5. FIFO Advantage**
- Closing inventory is valued at the most recent prices, making the Statement of Financial Position more reflective of current market values. (1)

**6. Cost of Sales Calculation**
- Working: $4,500 (Op) + $22,000 (Pur) - $1,200 (Ret) + $800 (CI) - $3,100 (Cl)
- Calculation: $26,100 - $3,100 = $23,000. (3)
- Answer: $23,000

**7. Gross Profit Calculation**
- Working: $45,000 (Revenue) - $23,000 (COS)
- Answer: $22,000. (2)

**8. Inventory Turnover Rate**
- Formula: $120,000 / $15,000
- Answer: 8 times. (2)

**9. Inventory Holding Period**
- Formula: 365 days / 4 times
- Answer: 91.25 days. (2)

**10. NRV Valuation**
- Cost = $1,200; NRV = $1,000 - $150 = $850.
- Lower of $1,200 and $850 is $850. (2)
- Answer: $850

**11. FIFO Closing Inventory**
- Total units = 30. Sold = 15. Remaining = 15.
- FIFO assumes first 10 units ($5) and 5 units from the next batch ($6) were sold.
- Remaining: 15 units from the Jan 10 batch @ $6 each.
- Calculation: 15 * $6 = $90. (3)
- Answer: $90

**12. AVCO Closing Inventory**
- Total Cost = (10 * 5) + (20 * 6) = $50 + $120 = $170.
- Total Units = 30.
- Average Cost = $170 / 30 = $5.666...
- Remaining units = 15.
- Calculation: 15 * $5.666... = $85. (3)
- Answer: $85

**13. Effect on Profit**
- Closing inventory overstated $\rightarrow$ Cost of Sales understated $\rightarrow$ Net Profit overstated. (1)
- Answer: Net Profit is overstated.

**14. Effect on Assets**
- Closing inventory is a current asset. (1)
- Answer: Current Assets are overstated.

**15. Inventory Turnover Rate**
- Average Inventory = ($12,000 + $8,000) / 2 = $10,000.
- Turnover = $80,000 / $10,000 = 8 times. (2)
- Answer: 8 times.

**16. FIFO vs AVCO (Rising Prices)**
- FIFO assumes the oldest (cheaper) items are sold first. (1)
- Therefore, the closing inventory consists of the newest (more expensive) items. (1)
- FIFO results in a higher closing inventory value than AVCO. (1)

**17. Closing Inventory and Gross Profit**
- Closing inventory is subtracted from the cost of goods available for sale to find Cost of Sales. (1)
- A higher closing inventory value leads to a lower Cost of Sales. (1)
- A lower Cost of Sales results in a higher Gross Profit. (1)

**18. Efficiency Commentary**
- Firm X (12 times) has a much higher turnover than Firm Y (3 times). (1)
- This indicates Firm X sells and replaces its stock much faster. (1)
- Firm X is more efficient in managing its inventory, reducing holding costs and the risk of obsolescence. (2)

**19. Falling Prices Switch (AVCO to FIFO)**
- In falling prices, the newest stock is the cheapest. (1)
- FIFO assumes the oldest (more expensive) stock is sold first. (1)
- This leads to a higher Cost of Sales compared to AVCO. (1)
- Consequently, the Net Profit will decrease. (1)

**20. Non-Accounting Factors**
- (Any two of the following):
  - Lead time from suppliers (how long it takes to receive new stock).
  - Storage capacity/warehouse space.
  - Perishability of goods (expiry dates).
  - Market demand volatility/seasonal trends.
  - Relationship with suppliers (bulk discounts vs. storage costs). (4)