Managerial Accounting — 2024

KNEC Diploma in Supply Chain Management, Module III. Original examination questions with explained answers for revision. Answers are independently prepared for study and are not an official KNEC marking scheme.

November 2024

Paper codes: 2903/305; 2906/305; 2907/305; 2926/305; 3103

Time: 3 hours. Answer any FIVE of the SEVEN questions. All questions carry equal marks. Answer in English.

Question 1(a) — 8 marks

Explain four functions of managerial accounting.

Answer

  1. Planning: prepare forecasts, budgets and cost estimates that turn objectives into measurable resource requirements.
  2. Decision support: compare relevant future revenues and costs of alternatives such as making or buying, pricing and investing.
  3. Control: compare actual results with budgets, investigate significant variances and recommend corrective action.
  4. Performance evaluation: report controllable results for responsibility centres so managers can assess efficiency and achievement of targets.

Question 1(b) — 12 marks

Nextime Limited intends to invest Ksh. 8,000,000 in a project. The project has an estimated useful life of 8 years. The expected scrap value at the end of 8 years is Ksh. 500,000. The project is expected to generate an annual net operating income of Ksh. 2,000,000. The company accepts projects with a payback period of less than three years.

(i) determine the payback period of the project;

(ii) advise the management whether to invest in the project or not.

Answer

  1. Net operating income is treated as accounting profit after straight-line depreciation. Add back depreciation to obtain annual operating cash inflow.
  2. Accept the project under the stated payback rule because 2.72 years is less than three years. Payback alone does not measure total profitability or the time value of money.
Item Working Result
Annual depreciation (8,000,000 − 500,000) ÷ 8 937,500
Annual cash inflow 2,000,000 + 937,500 2,937,500
Payback period 8,000,000 ÷ 2,937,500 2.7234 years

The scrap proceeds arrive at the end of year 8, after payback, so they are not added to every annual cash inflow. If “income” were intended to mean cash inflow instead, payback would be 4 years; this answer uses the normal accounting-income interpretation.

Question 2(a) — 8 marks

Highlight four limitations of cost-volume-profit (CVP) analysis.

Answer

  1. Constant selling price is assumed, although discounts and market changes may alter revenue per unit.
  2. Costs are treated as linear, with constant variable cost per unit and fixed costs within a relevant range; overtime or capacity steps can break this assumption.
  3. Costs must be separated reliably into fixed and variable elements, which is difficult for mixed costs.
  4. A single product or constant sales mix is assumed; changes in the mix alter the average contribution and break-even point.

Question 2(b) — 12 marks

The following data shows the number of guests and the costs incurred by Townside Hotel during the year 2023.

2023 Number of guests Cost (Ksh)
March 200 1,500,000
April 325 1,650,000
May 400 2,100,000
June 525 2,400,000
July 600 2,700,000
August 450 2,050,000
September 375 1,950,000

Using the High-Low method, determine the:

(i) variable cost per guest;

(ii) fixed cost per month;

(iii) cost to be incurred for 1,100 guests.

Answer

Item Working Result
Highest activity x = 600; cost = 2,700,000
Lowest activity x = 200; cost = 1,500,000
Variable cost per unit (2,700,000 − 1,500,000) ÷ (600 − 200) 3,000
Fixed cost 2,700,000 − 3,000 × 600 900,000
Cost function Y = a + bx Y = 900,000 + 3,000x
Cost at 1,100 units 900,000 × 1 + 3,000 × 1,100 4,200,000

Select the highest and lowest activity levels, rather than the highest and lowest cost observations.

Question 3(a) — 8 marks

Highlight four conditions that should be met before the application of a transportation technique in solving problems.

Answer

  1. Identifiable sources and destinations must exist, with known quantities of supply and demand for the same planning period.
  2. The product must be sufficiently homogeneous and quantities divisible or otherwise compatible with the allocation units.
  3. Unit transportation costs must be known for each allowed route and the total objective must be additive and approximately linear.
  4. The tableau must be balanced: total supply equals total demand, using a clearly identified dummy source or destination when necessary.

Question 3(b) — 12 marks

Matendo Limited intends to invest Ksh. 15,000,000 in a project. The project is expected to generate net cash inflows as follows:

Year Net cash inflow (Ksh)
1 5,000,000
2 6,000,000
3 4,000,000
4 3,000,000
5 1,500,000

Additional information: (I) The expected scrap value of the project at the end of year 5 is Ksh. 500,000. (II) The company’s cost of capital is 14%.

Required:

(i) Determine the net present value (NPV) of the project.

(ii) Advise the management whether to invest in the project or not.

Answer

  1. Add the Ksh. 500,000 scrap value to the year-5 operating cash inflow, giving Ksh. 2,000,000 in year 5.
  2. Reject the project on the NPV criterion: its negative NPV of Ksh. 482,365.69 means it fails to earn the required 14% return.

Discounted cash flows: discount rate 14%. PV = cash flow ÷ (1 + r)ⁿ. All amounts are Ksh.

Year Net cash flow Discount factor Present value
1 5,000,000 0.877193 4,385,964.91
2 6,000,000 0.769468 4,616,805.17
3 4,000,000 0.674972 2,699,886.06
4 3,000,000 0.592080 1,776,240.83
5 2,000,000 0.519369 1,038,737.33
Total PV 14,517,634.31
Initial investment (time 0) -15,000,000
NPV -482,365.69

Question 4(a) — 10 marks

Mazuri Limited has a team of four salesmen to be assigned in four counties. The profit in Kenya shillings to be made by each salesman is as shown in the table below.

Salesman Nairobi Nakuru Kisumu Mombasa
Ali 320 200 280 220
Babu 280 220 300 300
Charo 300 300 260 240
Dado 260 240 280 300

Assign the salesmen to counties in order to maximize profit.

Answer

Maximise by converting each entry to an opportunity loss: 320 minus the original entry. Apply the Hungarian method. Reduce each row by its smallest entry, then reduce each column by its smallest entry.

After row reduction:

Nairobi Nakuru Kisumu Mombasa
Ali 0 120 40 100
Babu 20 80 0 0
Charo 0 0 40 60
Dado 40 60 20 0

After column reduction:

Nairobi Nakuru Kisumu Mombasa
Ali 0 120 40 100
Babu 20 80 0 0
Charo 0 0 40 60
Dado 40 60 20 0

Choose four independent zeros, with one assignment in every row and column. Read the values from the original table:

Assign To Ksh
Ali Nairobi 320
Babu Kisumu 300
Charo Nakuru 300
Dado Mombasa 300
Maximum 1,220

Question 4(b) — 10 marks

Malaku Limited makes and sells product M27. The variable cost per unit is Ksh. 300. The selling price is Ksh. 400. The budgeted fixed costs are Ksh. 700,000. Budgeted sales are 10,000 units.

(i) Determine the: (I) Break-even point in units; (II) Break-even point in shillings; (III) Margin of safety in units; (IV) Percentage margin of safety.

(ii) Interpret the results obtained in (i)(III) above.

Answer

  1. Contribution per unit is Ksh. 100. The margin of safety means budgeted sales may fall by 3,000 units, or 30%, before the company reaches break-even.
Item Working Result
Contribution/unit 400 − 300 100
Break-even units 700,000 ÷ 100 7,000 units
Break-even sales 7,000 × 400 2,800,000
Margin of safety 10,000 − 7,000 3,000 units
MOS percentage 3,000 ÷ 10,000 × 100 30%

Question 5(a) — 9 marks

Makutano Limited has four quarries 1, 2, 3 and 4 and four construction sites M, N, P and Q to deliver building stones. The following table shows the cost in Kenya shillings of transporting 1 stone from the quarry to the construction site.

Quarry M N P Q R Supply
1 14 12 8 10 18 40
2 16 10 12 14 16 30
3 12 16 18 12 10 20
4 10 14 14 16 12 10
Requirements 30 30 15 20 5

Using the North-West rule, determine the optimum transportation schedule that will minimize the total cost.

Answer

The introduction says four sites, but the printed table includes five, M, N, P, Q and R. Use all five columns; their demand totals 100, equal to supply.

NW allocation steps:

Step Route Selection Quantity
1 1 → M unit cost 14 30
2 1 → N unit cost 12 10
3 2 → N unit cost 10 20
4 2 → P unit cost 12 10
5 3 → P unit cost 18 5
6 3 → Q unit cost 12 15
7 4 → Q unit cost 16 5
8 4 → R unit cost 12 5

Initial basic feasible schedule:

Source → destination M N P Q R Supply
1 30 10 0 0 0 40
2 0 20 10 0 0 30
3 0 0 5 15 0 20
4 0 0 0 5 5 10
Demand 30 30 15 20 5 100

Initial transportation cost = Σ(quantity × unit cost) = 1,270 Ksh.

The initial allocation method produces a feasible schedule, but does not by itself prove minimum cost. Apply MODI: uᵢ + vⱼ = cᵢⱼ on basic cells and Δᵢⱼ = cᵢⱼ − uᵢ − vⱼ on nonbasic cells. A negative Δ permits a cost reduction; adjust alternating +/− cells by θ. Zero basic allocations may be used for degeneracy.

Iteration Entering route Δ per unit θ Alternating loop New total cost
1 1 → P -6 10 +1→P; −2→P; +2→N; −1→N 1,210
2 2 → M -2 0 +2→M; −1→M; +1→P; −2→P 1,210
3 3 → M -12 5 +3→M; −1→M; +1→P; −3→P 1,150
4 1 → Q -4 15 +1→Q; −3→Q; +3→M; −1→M 1,090
5 4 → M -10 5 +4→M; −1→M; +1→Q; −4→Q 1,040
6 2 → R -2 0 +2→R; −4→R; +4→M; −2→M 1,040
7 3 → R -4 5 +3→R; −4→R; +4→M; −3→M 1,020
8 2 → M -2 0 +2→M; −3→M; +3→R; −2→R 1,020

Optimal schedule:

Source → destination M N P Q R Supply
1 5 0 15 20 0 40
2 0 30 0 0 0 30
3 15 0 0 0 5 20
4 10 0 0 0 0 10
Demand 30 30 15 20 5 100
Row potentials u 1 2 3 4
Value 0 2 -2 -4
Column potentials v M N P Q R
Value 14 8 8 10 12

Final reduced costs (all are nonnegative, proving optimality):

M N P Q R
1 0 4 0 0 6
2 0 0 2 2 2
3 0 10 12 4 0
4 0 10 10 10 4

Cost working: 5 × 14 + 15 × 8 + 20 × 10 + 30 × 10 + 15 × 12 + 5 × 10 + 10 × 10 = 1,020 Ksh.

Question 5(b) — 11 marks

Tuanze Limited has been performing poorly over the last three years. The management of the company is considering two alternatives to improve the performance. I expand the product line; II outsource the products.

The chances of selling the products in the international market and local market are 70% and 30% respectively. The following tables show the expected profits and their associated probabilities under different markets.

International demand Probability Expand (Ksh) Outsource (Ksh)
High 0.80 1,000,000 900,000
Low 0.20 800,000 600,000
Local demand Probability Expand (Ksh) Outsource (Ksh)
High 0.60 750,000 550,000
Low 0.40 600,000 400,000

The product expansion policy will cost Ksh. 100,000 while the outsourcing policy will cost Ksh. 10,000.

(i) prepare a decision tree to present the information above;

(ii) determine the expected monetary value (EMV) for each alternative;

(iii) advise the management whether to expand the product line or outsource the product.

Answer

  1. Multiply the market probability by the conditional demand probability to obtain each joint probability. Deduct each policy cost once, after calculating its expected gross profit.
  2. Expand the product line: net EMV is Ksh. 779,000, compared with Ksh. 725,000 for outsourcing, an expected advantage of Ksh. 54,000.
Tuanze: expansion or outsourcing
Tuanze: expansion or outsourcing
Market / demand Joint probability Expand (Ksh) Outsource (Ksh)
International / high .7 × .8 = .56 1,000,000 900,000
International / low .7 × .2 = .14 800,000 600,000
Local / high .3 × .6 = .18 750,000 550,000
Local / low .3 × .4 = .12 600,000 400,000
Alternative Σ probability × payoff Expected gross payoff Option cost Net EMV (Ksh)
Expand 0.56 × (1,000,000) + 0.14 × (800,000) + 0.18 × (750,000) + 0.12 × (600,000) 879,000 100,000 779,000
Outsource 0.56 × (900,000) + 0.14 × (600,000) + 0.18 × (550,000) + 0.12 × (400,000) 735,000 10,000 725,000

Question 6(a) — 8 marks

Highlight four features of a single queue model.

Answer

  1. One service channel handles customers from a single waiting line.
  2. Arrivals are independent and random, normally represented by a Poisson process with a constant mean rate.
  3. Service times are independent and exponentially distributed with a constant mean service rate.
  4. For the usual steady-state M/M/1 results, the service rate exceeds the arrival rate; customers normally follow first-come, first-served discipline.

Question 6(b) — 12 marks

Kalulu Limited manufactures two types of tables; round and rectangular. The following is the operating statement of the company for the year 2023.

Operating statement (Ksh) Round Rectangular Total
Sales 2,800,000 10,000,000 12,800,000
Variable production costs 1,200,000 4,000,000 5,200,000
Adverting 820,000 2,200,000 3,020,000
Depreciation 400,000 800,000 1,200,000
Line supervisors salaries 120,000 140,000 260,000
Factory expenses 560,000 2,000,000 2,560,000
Printed total costs 1,900,000 9,140,000 12,240,000
Net operating income -300,000 860,000 560,000

Additional information: (I) The management is concerned about the losses made in round tables and intends to discontinue its manufacture. (II) If the manufacture of round tables is discontinued, the line supervisors assigned to the model will be discharged. (III) Advertising costs are specific to the products.

(i) Using marginal costing technique, prepare: (I) current operating statement; (II) operating statement if production of round tables is discontinued.

(ii) Advise the management whether to discontinue production of round tables or not.

Answer

  1. The round-table cost components add to Ksh. 3,100,000, although the printed total is Ksh. 1,900,000. The component figures reconcile with the printed round-table loss of Ksh. 300,000 and total profit of Ksh. 560,000; use those components.
  2. Round-table advertising and its supervisor salary are avoidable. Depreciation and factory expenses are assumed to continue because no disposal proceeds or avoidability is stated.
  3. Retain round tables. Discontinuing them removes Ksh. 660,000 of contribution after avoidable costs, turning a Ksh. 560,000 profit into a Ksh. 100,000 loss. Review the decision if additional fixed costs can actually be saved.
Current operating statement (Ksh) Round Rectangular Total
Sales 2,800,000 10,000,000 12,800,000
Variable production 1,200,000 4,000,000 5,200,000
Contribution 1,600,000 6,000,000 7,600,000
Product advertising 820,000 2,200,000 3,020,000
Line supervisors 120,000 140,000 260,000
Contribution after avoidable costs 660,000 3,660,000 4,320,000
Depreciation 400,000 800,000 1,200,000
Factory expenses 560,000 2,000,000 2,560,000
Profit / loss -300,000 860,000 560,000
If round tables are discontinued (Ksh) Amount
Rectangular sales 10,000,000
Variable production 4,000,000
Contribution 6,000,000
Rectangular advertising 2,200,000
Remaining supervisor 140,000
All depreciation retained 1,200,000
All factory expenses retained 2,560,000
Profit / loss -100,000

Question 7(a) — 8 marks

Explain four objectives of responsibility accounting.

Answer

  1. Assign accountability: identify managers responsible for each cost, revenue, profit or investment centre.
  2. Set measurable targets: communicate budgets and standards for the factors each manager can influence.
  3. Control operations: compare actual results with targets and investigate exceptions at the appropriate responsibility level.
  4. Improve performance and goal alignment: provide feedback and incentives that link divisional decisions to overall organisational objectives.

Question 7(b) — 12 marks

The following is the statement of financial position of Freezo Limited as at 31 December 2023.

Statement of financial position at 31 December 2023 (Ksh) Amount
Plant and equipment — cost 700,000
Less accumulated depreciation -290,000
Net plant 410,000
Motor vehicles — cost 1,200,000
Less accumulated depreciation -150,000
Net vehicles 1,050,000
Total noncurrent assets 1,460,000
Finished goods 52,000
Raw materials 100,000
Accounts receivable 182,000
Bank 50,000
Current assets 384,000
Total assets 1,844,000
Ordinary share capital 1,200,000
Retained profit 470,000
Total equity 1,670,000
Accounts payable 174,000
Capital and liabilities 1,844,000

Additional information relating to the projections for the year 2024:

(i) The expected cash at bank as at 31 December 2024 will be Ksh. 90,000.

(ii) The accounts receivable will increase by Ksh. 20,000.

(iii) The inventory of finished goods will decrease by 20% while raw materials will increase by 10%.

(iv) A motor vehicle costing Ksh. 200,000 will be acquired during the year. Depreciation on motor vehicles for the year will be Ksh. 239,600.

(v) Depreciation on plant is Ksh. 40,000 per annum.

(vi) Accounts receivable will increase by Ksh. 18,000 while the accounts payable will decrease by Ksh. 62,000.

(vii) The expected retained profit for the year will be Ksh. 40,000.

Prepare a budgeted statement of financial position as at 31 December 2024.

Answer

  1. Notes (ii) and (vi) give conflicting increases in the same accounts-receivable balance. A unique budget cannot be confirmed until the setter clarifies the discrepancy.
  2. For the provisional statement below, treat the later Ksh. 18,000 increase in note (vi) as superseding note (ii), and treat the Ksh. 40,000 retained profit as the addition for 2024. This interpretation balances without an invented adjustment.
  3. Keep the alternative outcomes visible rather than forcing the Ksh. 20,000 instruction to balance with an unsupported cash, borrowing or equity figure.
Budgeted position at 31 December 2024 (Ksh) Working Amount
Net plant 410,000 − 40,000 370,000
Net motor vehicles 1,050,000 + 200,000 − 239,600 1,010,400
Noncurrent assets 1,380,400
Finished goods 52,000 × 80% 41,600
Raw materials 100,000 × 110% 110,000
Receivables (note vi assumption) 182,000 + 18,000 200,000
Bank Given 90,000
Current assets 441,600
Total assets 1,822,000
Ordinary share capital Unchanged 1,200,000
Retained profit 470,000 + 40,000 510,000
Equity 1,710,000
Accounts payable 174,000 − 62,000 112,000
Total equity and liabilities 1,822,000
Receivables interpretation Receivables (Ksh) Total assets (Ksh) Unexplained excess over equity/liabilities
Use note (vi), +18,000 200,000 1,822,000 0
Use note (ii), +20,000 202,000 1,824,000 2,000
Add both increases 220,000 1,842,000 20,000