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Secondary 4 Principles of Accounts Inventory Costing Quiz

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Questions

Secondary 4 Principles of Accounts Quiz - Inventory Costing

Name: __________________________
Class: __________________________
Date: ___________________________
Score: ________ / 50

Duration: 45 Minutes
Total Marks: 50

Instructions:

Answer all questions.
Show all workings clearly. Marks are awarded for method.
Round off all final answers to two decimal places where appropriate.
This quiz covers FIFO, AVCO, Inventory Valuation concepts, and Inventory Ratios.

Section A: Concepts and Definitions (Questions 1-5)

1. Which of the following best describes the "Prudence Concept" in relation to inventory valuation?
[1]
A. Inventory should always be valued at selling price.
B. Inventory should be valued at the higher of cost or net realisable value.
C. Inventory should be valued at the lower of cost or net realisable value.
D. Inventory should be valued at historical cost regardless of market conditions.

2. In a period of rising prices, which inventory valuation method will result in the highest closing inventory value?
[1]
A. FIFO (First-In, First-Out)
B. AVCO (Weighted Average Cost)
C. LIFO (Last-In, First-Out)
D. Specific Identification

3. Define "Net Realisable Value" (NRV).
[2]

4. State one advantage of using the AVCO method over the FIFO method.
[1]

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

Section B: Basic Calculations and FIFO Application (Questions 6-10)

6. Calculate the Cost of Sales given the following:
Opening Inventory: $12,000 Purchases:$ 45,000
Carriage Inwards: $1,500 Closing Inventory:$ 10,000
[2]

7. Scenario: TechParts Pte Ltd trades in electronic components. The following transactions occurred for Component X in March 2024:

Date	Transaction	Units	Cost per Unit ($)	Selling Price per Unit ($)
Mar 1	Opening Inventory	100	10.00	-
Mar 5	Purchase	200	12.00	-
Mar 10	Sale	150	-	20.00
Mar 15	Purchase	100	13.00	-
Mar 20	Sale	120	-	20.00
Mar 25	Purchase	50	14.00	-

Using the FIFO method, calculate the value of the Closing Inventory as at 31 March 2024.
[4]

8. Using the FIFO method and the data in Question 7, calculate the Gross Profit for March 2024.
[4]

9. Using the AVCO method and the data in Question 7, calculate the weighted average cost per unit after the purchase on Mar 5. Round to 2 decimal places.
[2]

10. Using the AVCO method and the data in Question 7, calculate the value of the Closing Inventory as at 31 March 2024.
(Note: Recalculate the weighted average cost after each purchase. Round unit cost to 2 decimal places at each step.)
[5]

Section C: AVCO Profit and Inventory Ratios (Questions 11-15)

11. Using the AVCO method and your answer from Question 10, calculate the Gross Profit for March 2024.
[6]

12. Scenario: Two companies, Alpha Ltd and Beta Ltd, operate in the same industry selling furniture. Their financial data for the year ended 31 December 2023 is as follows:

	Alpha Ltd ($)	Beta Ltd ($)
Revenue	500,000	500,000
Cost of Sales	300,000	350,000
Opening Inventory	40,000	60,000
Closing Inventory	60,000	40,000

Calculate the Average Inventory for Alpha Ltd.
[1]

13. Calculate the Inventory Turnover Rate for Alpha Ltd.
[2]

14. Calculate the Inventory Turnover Rate for Beta Ltd.
[2]

15. Compare the inventory management efficiency of Alpha Ltd and Beta Ltd based on your calculations in Questions 13 and 14.
[3]

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

16. Alpha Ltd uses the FIFO method, while Beta Ltd uses the AVCO method. Prices of furniture materials have been rising steadily throughout the year. Explain how the choice of inventory method influences the Cost of Sales for Alpha Ltd compared to Beta Ltd.
[2]

17. Based on the rising price environment described in Question 16, explain how the Gross Profit of Alpha Ltd compares to Beta Ltd, assuming all other factors are equal.
[2]

18. Apart from the accounting method, suggest one reason related to product mix why Beta Ltd might have a different inventory turnover rate compared to Alpha Ltd.
[2]

19. Suggest one reason related to sales strategy or pricing why Beta Ltd might have a higher inventory turnover rate than Alpha Ltd.
[2]

20. Suggest one reason related to inventory policy or supply chain why Alpha Ltd might have a lower inventory turnover rate than Beta Ltd.
[2]

Answers

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

Total Marks: 50

Section A: Concepts and Definitions (Questions 1-5)

1. C
[1 mark]

2. A
[1 mark]
Reasoning: In rising prices, FIFO leaves the most recent (higher) costs in closing inventory.

3. Net Realisable Value is the estimated selling price in the ordinary course of business, less the estimated costs of completion and the estimated costs necessary to make the sale.
[2 marks: 1 for selling price, 1 for less costs to sell]

4. Any one of the following:

It smooths out price fluctuations.
It is easier to administer/calculate than tracking specific batches (FIFO).
It is acceptable for tax purposes in many jurisdictions (where LIFO is not).
[1 mark]

5. B
[1 mark]
Reasoning: Closing Inventory is added to Gross Profit (or subtracted from COGS). If Closing Inv is higher, COGS is lower, so Profit is higher.

Section B: Basic Calculations and FIFO Application (Questions 6-10)

6.
Cost of Sales = Opening Inventory + Purchases + Carriage Inwards - Closing Inventory
= $12,000 +$ 45,000 + $1,500 -$ 10,000
= $48,500
[2 marks: 1 for formula/setup, 1 for correct answer]

7. FIFO Closing Inventory
Total Units Available: 100 + 200 + 100 + 50 = 450 units
Total Units Sold: 150 + 120 = 270 units
Closing Inventory Units: 450 - 270 = 180 units

Under FIFO, closing inventory consists of the most recent purchases:

50 units from Mar 25 @ $14.00 =$ 700
100 units from Mar 15 @ $13.00 =$ 1,300
Remaining 30 units from Mar 5 @ $12.00 =$ 360
(Check: 50+100+30 = 180 units)

Total Value = $700 +$ 1,300 + $360 = **$ 2,360**
[4 marks: 1 for identifying units, 1 for correct layers, 1 for calculation, 1 for final answer]

8. FIFO Gross Profit
Revenue = (150 units × $20) + (120 units ×$ 20) = $3,000 +$ 2,400 = $5,400

Cost of Sales (COGS):
Opening Inventory: 100 × $10 =$ 1,000
Purchases: (200 × $12) + (100 ×$ 13) + (50 × $14) =$ 2,400 + $1,300 +$ 700 = $4,400 Goods Available for Sale =$ 5,400
Less Closing Inventory = $2,360 COGS =$ 5,400 - $2,360 =$ 3,040

Alternative COGS Calculation (FIFO layers sold):

Sale Mar 10 (150 units): 100 @ $10 + 50 @$ 12 = $1,000 +$ 600 = $1,600
Sale Mar 20 (120 units): 150 remaining from Mar 5 @ $12. Need 120. So 120 @$ 12 = $1,440.
Total COGS = $1,600 +$ 1,440 = $3,040.

Gross Profit = Revenue - COGS
= $5,400 -$ 3,040 = $2,360
[4 marks: 1 for Revenue, 1 for COGS, 1 for subtraction, 1 for final answer]

9. AVCO Unit Cost after Mar 5
Opening: 100 units @ $10 =$ 1,000
Purchase Mar 5: 200 units @ $12 =$ 2,400
Total Value = $3,400 Total Units = 300 Average Cost =$ 3,400 / 300 = $11.33 (rounded to 2 d.p.)
[2 marks: 1 for setup, 1 for correct unit cost]

10. AVCO Closing Inventory

Step 1: Sale on Mar 10 (150 units)
Cost = 150 × $11.33 =$ 1,699.50
Remaining Inventory: 150 units @ $11.33 =$ 1,699.50

*Step 2: Purchase on Mar 15 (100 units @ $13)* New Inventory Value =$ 1,699.50 + (100 × $13) =$ 1,699.50 + $1,300 =$ 2,999.50
New Total Units = 150 + 100 = 250 units
New Average Cost = $2,999.50 / 250 =$ 11.998 → $12.00 (rounded)

Step 3: Sale on Mar 20 (120 units)
Cost = 120 × $12.00 =$ 1,440.00
Remaining Inventory: 130 units @ $12.00 =$ 1,560.00

*Step 4: Purchase on Mar 25 (50 units @ $14)* New Inventory Value =$ 1,560.00 + (50 × $14) =$ 1,560.00 + $700.00 =$ 2,260.00
New Total Units = 130 + 50 = 180 units
(Note: No further sales, so this is the closing inventory value)

Closing Inventory Value = * $2,260.00** *[5 marks: 1 for Mar 10 balance, 1 for Mar 15 new avg cost, 1 for Mar 20 balance, 1 for Mar 25 addition, 1 for final answer]* *(Note: If student carries unrounded figures, accept range$ 2,259 - $2,261)

Section C: AVCO Profit and Inventory Ratios (Questions 11-15)

11. AVCO Gross Profit
Revenue = $5,400 (Same as above)

COGS Calculation:
Opening Inventory: $1,000 Purchases:$ 4,400
Goods Available: $5,400 Less Closing Inventory:$ 2,260
COGS = $5,400 -$ 2,260 = $3,140

Alternative COGS Check:
Mar 10 Sale: $1,699.50 Mar 20 Sale:$ 1,440.00
Total COGS = $3,139.50 → Round to$ 3,140.

Gross Profit = $5,400 -$ 3,140 = $2,260
[6 marks: 1 for Revenue, 1 for COGS logic, 1 for COGS value, 1 for subtraction, 1 for final answer, 1 for consistency with previous part]

12. Alpha Ltd Average Inventory
Average Inventory = (Opening + Closing) / 2
= ( $40,000 +$ 60,000) / 2
= $50,000
[1 mark]

13. Alpha Ltd Inventory Turnover
Turnover = Cost of Sales / Average Inventory
= $300,000 /$ 50,000
= 6.0 times
[2 marks: 1 for formula/substitution, 1 for answer]

14. Beta Ltd Inventory Turnover
Average Inventory = ( $60,000 +$ 40,000) / 2 = $50,000 Turnover =$ 350,000 / $50,000
= 7.0 times
[2 marks: 1 for avg inv/calc, 1 for answer]

15. Comparison of Efficiency
Beta Ltd has a higher inventory turnover rate (7.0 times) compared to Alpha Ltd (6.0 times). This indicates that Beta Ltd is more efficient in managing its inventory, selling its stock faster, and converting inventory into cash more quickly than Alpha Ltd.
[3 marks: 1 for identifying Beta is higher/faster, 1 for explanation of efficiency, 1 for link to cash/liquidity]

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

16. Effect on Cost of Sales (Rising Prices)

Alpha (FIFO): Assigns older, lower costs to Cost of Sales. Therefore, Alpha's Cost of Sales will be lower.
Beta (AVCO): Smooths costs, including newer higher prices. Therefore, Beta's Cost of Sales will be higher than Alpha's.
[2 marks: 1 for Alpha lower COGS, 1 for Beta higher COGS]

17. Effect on Gross Profit (Rising Prices)
Since Alpha has a lower Cost of Sales (due to FIFO) and Beta has a higher Cost of Sales (due to AVCO), Alpha's Gross Profit will be higher than Beta's, assuming revenue is similar.
[2 marks: 1 for Alpha higher profit, 1 for reasoning linked to COGS]

18. Non-Accounting Reason: Product Mix
Beta may sell lower-value, high-volume items (fast-moving consumer goods) while Alpha sells high-value, slower-moving custom furniture.
[2 marks: 1 for reason, 1 for explanation]

19. Non-Accounting Reason: Sales Strategy
Beta may have aggressive discounting or marketing strategies that drive higher sales volume, leading to faster stock clearance.
[2 marks: 1 for reason, 1 for explanation]

20. Non-Accounting Reason: Inventory Policy/Supply Chain
Alpha may keep higher safety stock levels to prevent stockouts, increasing average inventory and lowering turnover, or Beta may have a more efficient just-in-time supply chain.
[2 marks: 1 for reason, 1 for explanation]