AI Generated Quiz
Secondary 4 Principles of Accounts Inventory Costing Quiz
Free Sec 4 POA Inventory Costing quiz, HY3 AI version, with questions, answers, and O Level-style practice for Singapore students.
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Questions
Secondary 4 Principles of Accounts Quiz - Inventory Costing
Name: ___________________________
Class: ___________________________
Date: ___________________________
Score: _______ / 40
Duration: 50 minutes
Total Marks: 40
Instructions:
- Answer all 20 questions.
- Show all workings clearly for calculation questions.
- Write your answers in the spaces provided.
- This quiz is syllabus-first practice content generated from AI-inferred templates. It is not derived from official past-year papers.
Section A: Basic Concepts and Valuation (Questions 1–5)
1. State the principle used to value inventory in accordance with the prudence concept. [1]
2. Define "net realisable value" of inventory in your own words. [2]
3. Joo Hock Traders counted its closing inventory and found goods costing 800weredamaged.Theestimatedsellingpriceis500 and costs to sell are $80. State the value to be included for these goods in closing inventory. [2]
4. Explain why inventory is recorded at the lower of cost and net realisable value. [2]
5. State two items that are included in the "cost" of inventory. [2]
(i) _________________________________________________________
(ii) _________________________________________________________
Section B: FIFO and AVCO Calculations (Questions 6–10)
6. Mei Ling Stationery had the following transactions for item X in March 2025:
| Date | Receipts | Issues |
|---|---|---|
| 1 Mar | Opening 100 units @ $2.00 | |
| 5 Mar | Purchase 50 units @ $2.20 | |
| 12 Mar | Sale 120 units | |
| 20 Mar | Purchase 80 units @ $2.40 | |
| 25 Mar | Sale 60 units |
Using FIFO, calculate the closing inventory value as at 31 March 2025. [3]
7. Using the same data in Question 6, calculate the cost of goods sold for March 2025 using FIFO. [2]
8. Using the AVCO (weighted average cost) method and the data in Question 6, calculate the closing inventory value. Use periodic weighted average. [3]
9. State one difference between FIFO and AVCO in terms of how unit costs are determined. [1]
10. In a period of rising prices, which method (FIFO or AVCO) gives a higher closing inventory value? Explain briefly. [2]
Section C: Cost of Sales and Inventory Turnover (Questions 11–15)
11. From the following for Bala Enterprises for year ended 31 Dec 2025: opening inventory 4,000,purchases26,000, carriage inwards 1,000,closinginventory5,000. Calculate cost of sales. [2]
12. Calculate the average inventory for Chen Hardware if opening inventory is 3,000andclosinginventoryis7,000. [1]
13. Using your answer in Q11 and Q12-style data: Ravi Store has COGS 60,000,openinginventory8,000, closing inventory $10,000. Calculate inventory turnover rate. [2]
14. State the formula for inventory holding period. [1]
15. A company has inventory turnover of 12 times. Calculate its inventory holding period in days (assume 365 days). [2]
Section D: Errors, Effects and Analysis (Questions 16–20)
16. Siti's closing inventory was overstated by $2,000. State the effect on her reported profit for the year. [1]
17. If opening inventory is understated by $1,500, state the effect on cost of sales for that year. [2]
18. Compare and comment: Firm A has inventory turnover 4 times, Firm B has 10 times. Which is more efficient in stock movement? Give one reason. [3]
19. Lim & Co uses FIFO. In a period of inflation, explain the effect on gross profit compared to AVCO. [2]
20. State two limitations of using inventory turnover ratio alone to judge performance. [2]
(i) _________________________________________________________
(ii) _________________________________________________________
Answers
Secondary 4 Principles of Accounts Quiz - Inventory Costing (Answer Key)
Total Marks: 40
Note: This is syllabus-first AI-generated practice content. Not from official past papers.
Section A: Basic Concepts and Valuation
1. [1 mark]
Answer: Lower of cost and net realisable value (LCNRV).
Teaching note: Inventory must not be overstated. Prudence means we anticipate losses, so we take the lower of what it cost us or what we can sell it for (minus costs).
2. [2 marks]
Answer: Net realisable value (NRV) is the estimated selling price of inventory minus any costs expected to be incurred in selling and completing the goods.
Marking: 1 mark for selling price idea, 1 mark for deducting costs to sell.
Teaching note: NRV looks forward — what cash will we actually get?
3. [2 marks]
Answer: 420.Working:NRV=500 − 80=420. Cost = 800.Lower=420.
Teaching note: Damaged goods cannot fetch full cost; we use LCNRV.
4. [2 marks]
Answer: To avoid overstating assets and profit (prudence/conservatism); losses are recognised early, gains only when certain.
Marking: 1 mark principle, 1 mark explanation.
5. [2 marks]
Answer: Any two of: purchase price, import duties, transport/carriage inwards, handling costs, direct labour (if manufacturing).
Marking: 1 mark each.
Section B: FIFO and AVCO Calculations
6. [3 marks]
Answer: $240
Working (FIFO):
- Opening 100 @ 2.00=200
- 5 Mar 50 @ 2.20=110
- 20 Mar 80 @ 2.40=192
Sales: 120 (from [email protected] + [email protected]) → remaining [email protected] = 66;thensale60from[email protected]→remaining[email protected]=48
Closing: [email protected] + [email protected] = 66+48 = 114?Waitrecalc:Actually:after120sold:30of2.20left.After60soldfrom[email protected]:[email protected]left.Closing=30×2.20+20×2.40=66+48=114.
Correction: Closing inventory = $114.
Marking: 2 for correct layers, 1 for total.
7. [2 marks]
Answer: 386Working:Totalavailable=200+50+80=330units;cost=200+110+192=502. Closing 114.COGS=502−114=388? Recheck: 100×2 + 50×2.20 + 80×2.40 = 200+110+192 = 502. Less closing 114 = 388.
Answer COGS = $388.
Marking: 1 working, 1 answer.
8. [3 marks]
Answer: 120.67(approx)Working(periodicAVCO):Totalcost=502, total units = 330. Avg = 502/330 = 1.5212perunit.Closingunits=330−180sold=150units.Value=150×1.5212=228.18.
Recalc: 502/330 = 1.5212; ×150 = 228.18.
Closing = $228.18.
Marking: 1 avg calc, 1 units, 1 value.
9. [1 mark]
Answer: FIFO uses actual oldest costs per batch; AVCO uses a blended average of all units.
10. [2 marks]
Answer: FIFO gives higher closing inventory in rising prices. Older (lower) costs go to COGS, newer (higher) costs remain in inventory.
Marking: 1 method, 1 reason.
Section C: Cost of Sales and Inventory Turnover
11. [2 marks]
Answer: 26,000Working:COGS=4000+26000+1000−5000=26,000.
Marking: 1 formula, 1 answer.
12. [1 mark]
Answer: $5,000 = (3000+7000)/2.
13. [2 marks]
Answer: 6.67 times
Working: Avg inv = (8000+10000)/2 = 9000. Turnover = 60000/9000 = 6.67.
Marking: 1 avg, 1 division.
14. [1 mark]
Answer: Inventory holding period = 365 ÷ inventory turnover (or 12 ÷ turnover in months).
15. [2 marks]
Answer: 30.4 days
Working: 365 ÷ 12 = 30.42 days.
Marking: 1 formula, 1 answer.
Section D: Errors, Effects and Analysis
16. [1 mark]
Answer: Profit overstated by $2,000.
17. [2 marks]
Answer: COGS understated by $1,500.
Working: COGS = Opening + Purchases − Closing. Lower opening → lower COGS.
Marking: 1 direction, 1 amount.
18. [3 marks]
Answer: Firm B more efficient (10 > 4). Reason: higher turnover means stock sold and replaced more often, less storage cost, lower obsolescence.
Marking: 1 comparison, 2 for reason.
19. [2 marks]
Answer: FIFO gives higher gross profit in inflation because COGS uses older lower costs, so profit larger than AVCO.
Marking: 1 effect, 1 reason.
20. [2 marks]
Answer: (i) Does not show profitability, (ii) ignores type of goods / seasonality / industry norm.
Marking: 1 each.
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