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Question 12181Question →

On a topographical map with a constant contour interval of $20\text{ m}$ , Point X is located on the contour line labeled $240\text{ m}$ . Point Y is located higher up the same hill, exactly three contour intervals above Point X. What is the elevation of Point Y in meters?

Show answer & explanation

Answer: 300

Answer

The elevation of Point Y is

300\text{ m}

The contour interval indicates that consecutive contour lines differ by

20\text{ m}

in elevation. Moving up three contour line intervals from Point X (

240\text{ m}

) increases elevation by

3 \times 20\text{ m} = 60\text{ m}

. Thus, the elevation at Point Y is

240\text{ m} + 60\text{ m} = 300\text{ m}

Step-by-Step Solution

Calculate total vertical rise between the two points

Vertical rise =

3 \times 20\text{ m} = 60\text{ m}

Point Y is three contour intervals higher than Point X, and each interval represents

20\text{ m}

of vertical distance.

Calculate the elevation at Point Y

Elevation at Point Y =

240\text{ m} + 60\text{ m} = 300\text{ m}

Adding the total vertical rise to the baseline elevation at Point X yields the final elevation at Point Y.

Key Concept

Calculating elevation on topographical maps using contour intervals

Estimated Time:45s

Question 12182Question →

Match each structural layer or boundary of the Earth listed in Column A with its defining physical characteristic or compositional property in Column B.

Click a left item, then click its matching right item

Show answer & explanation

Answer

Mohorovičić Discontinuity matches the boundary separating the crust from the mantle; Gutenberg Discontinuity matches the boundary between the mantle and outer core; Lithosphere matches the rigid outermost shell of crust and upper mantle; Asthenosphere matches the ductile semi-fluid upper mantle zone.

Each structural zone corresponds accurately to its physical state and boundary depth: the Mohorovičić discontinuity separates the crust from the mantle, the Gutenberg discontinuity separates the mantle from the outer core, the lithosphere represents the rigid outermost shell, and the asthenosphere represents the ductile upper mantle region.

Step-by-Step Solution

Identify seismic boundaries

Mohorovičić discontinuity separates crust from mantle, while Gutenberg discontinuity separates lower mantle from outer core.

Seismic velocity changes sharply at structural compositional transitions.

Distinguish physical state layers

Lithosphere is brittle/rigid outermost zone; Asthenosphere is ductile/semi-fluid underlying zone.

Mechanical properties differ based on temperature and pressure regimes.

Key Concept

Earth's Internal Discontinuities and Mechanical Spheres

Question 12183Question →

In a commercial firm, one staff member maintains the books of original entry and posts daily transactions to ledger accounts, while another staff member designs the financial record system, summarizes ledger balances, and compiles the end-of-period financial reports. Which statement accurately contrasts the fundamental nature of these two operational roles?

The first role is routine and clerical in nature, whereas the second role involves analytical work and financial interpretation.

The first role includes evaluating business performance and conducting audits, whereas the second role is strictly confined to preliminary transaction entry.

Both roles share an identical operational scope, requiring advanced professional accounting credentials for daily execution.

The first role records the private financial activities of the enterprise owner, whereas the second role records only official corporate transactions.

Show answer & explanation

Answer: The first role is routine and clerical in nature, whereas the second role involves analytical work and financial interpretation.

Answer

The first role is routine and clerical in nature, whereas the second role involves analytical work and financial interpretation.

The statement identifying the first role as routine and clerical and the second role as analytical and interpretive is correct. Bookkeeping deals with the systematic recording of financial transactions (a routine clerical task), while accounting builds upon bookkeeping to analyze, interpret, and present financial information for decision-making.

Step-by-Step Solution

Identify the functions described in the stem.

Maintaining journals and posting to ledgers represents bookkeeping, while designing systems, extracting trial balances, and preparing financial statements represents accounting.

Bookkeeping is the recording phase, whereas accounting encompasses the summarizing and interpreting phase.

Compare the core characteristics of bookkeeping versus accounting.

Bookkeeping is routine, mechanical, and clerical. Accounting is analytical, evaluative, and decision-oriented.

Bookkeeping establishes the financial record baseline upon which accounting analysis and reporting rely.

Key Concept

Scope and Functional Difference Between Bookkeeping and Accounting

Question 12184Question →

Match each Earth layer or structural boundary listed in Column A with its defining physical or compositional characteristic in Column B.

Click a left item, then click its matching right item

Show answer & explanation

Answer

Conrad Discontinuity matches the boundary between sial and sima crustal layers; Asthenosphere matches the ductile upper mantle zone; Stratosphere matches the atmospheric ozone heating zone; Barysphere matches the dense iron-nickel core.

Each feature correctly pairs its structural location with its chemical or physical attribute: the Conrad Discontinuity divides sialic and simatic crust, the Asthenosphere acts as the ductile upper mantle layer, the Stratosphere contains the protective ozone layer, and the Barysphere forms the dense central core region.

Step-by-Step Solution

Identify the internal boundary separating the upper continental crust from the lower crustal layer.

The Conrad discontinuity separates the granitic sial layer from the denser basaltic sima layer.

Geophysical observations show a distinct seismic velocity transition between continental sial and oceanic sima.

Analyze upper mantle rheology and thermal structure.

The asthenosphere is the weak, plastic layer of the upper mantle directly underlying the rigid lithosphere.

Partial melting allows convection currents to drag tectonic plates across the asthenosphere.

Examine thermal profile and chemical features of Earth's atmospheric envelope.

The stratosphere houses the ozone layer where ultraviolet radiation absorption leads to vertical temperature increases.

Solar UV absorption by O3 molecules converts radiant energy into heat within the atmospheric stratosphere.

Determine the compositional term for Earth's innermost structural core.

The barysphere represents the high-density interior metallic core consisting predominantly of nickel and iron (nife).

Gravitational and seismic data confirm the high-density metallic core situated at Earth's center.

Key Concept

Internal and External Structure of the Earth

Estimated Time:1m 30s

Question 12185Question →

A radio signal transmitted live from Station X, located at longitude $78^\circ\text{E}$ , is logged at $10:40\text{ AM}$ local solar time. At the exact same instant, the signal is received at Station Y, where the local solar time is logged as $03:16\text{ PM}$ on the same day. What is the longitude of Station Y in degrees East?

Show answer & explanation

Answer: 147

Answer

147°E

The time difference between 10:40 AM and 03:16 PM is 4 hours and 36 minutes. Converting this time difference to degrees using

15^\circ

per hour (

4 \times 15^\circ = 60^\circ

) and

1^\circ

per 4 minutes (

36 \text{ min} / 4 \text{ min/degree} = 9^\circ

) gives a total longitudinal distance of

69^\circ

. Because Station Y has a later solar time than Station X, it is situated further East. Adding

69^\circ

78^\circ\text{E}

yields

147^\circ\text{E}

Step-by-Step Solution

Calculate the time difference between Station Y and Station X

4 hours and 36 minutes

Subtracting the earlier local time at Station X (10:40 AM) from the later local time at Station Y (03:16 PM) yields a duration of 4 hours and 36 minutes.

Convert the calculated time difference into longitudinal degrees

69 degrees

Earth rotates through 15° of longitude per hour (or 1° every 4 minutes). Thus, 4 hours corresponds to 60° and 36 minutes corresponds to 9°, giving a total of 69°.

Calculate the longitude of Station Y based on directional time relationship

147°E

Because local time at Station Y is later than at Station X, Station Y lies further East. Adding the angular separation of 69° to 78°E results in 147°E.

Key Concept

Longitude calculation from local time difference

Question 12186Question →

A river basin covers a rectangular section measuring $4.5\text{ cm}$ by $8\text{ cm}$ on Map X, which has a representative fraction of $1 : 25,000$ . Map X is enlarged to create Map Y, where the same river basin occupies an area of $144\text{ cm}^2$ . Map Y is then reduced to construct Map Z, such that the denominator of Map Z's representative fraction is $4$ times that of Map Y. What is the area of the river basin on Map Z in $\text{cm}^2$ ?

Show answer & explanation

Answer: 9

Answer

The area of the river basin on Map Z is

9\text{ cm}^2

To find the area on Map Z, first calculate the basin's area on Map X:

4.5\text{ cm} \times 8\text{ cm} = 36\text{ cm}^2

. The area ratio from Map X to Map Y is

144 / 36 = 4

, which corresponds to a linear enlargement factor of

\sqrt{4} = 2

. Map Y therefore has a scale of

1 : 12,500

. Multiplying Map Y's RF denominator by

4

gives Map Z a scale of

1 : 50,000

. Comparing Map Y (

1 : 12,500

) to Map Z (

1 : 50,000

) reveals a linear reduction factor of

1/4

. The area reduction factor is

(1/4)^2 = 1/16

. Multiplying Map Y's area by

1/16

yields

144\text{ cm}^2 \times (1/16) = 9\text{ cm}^2

. Alternatively, comparing Map X (

1 : 25,000

) directly to Map Z (

1 : 50,000

) shows a linear factor of

1/2

, giving an area factor of

(1/2)^2 = 1/4

, and

36\text{ cm}^2 \times (1/4) = 9\text{ cm}^2

Step-by-Step Solution

Calculate the initial map area on Map X.

A_X = 4.5\text{ cm} \times 8\text{ cm} = 36\text{ cm}^2

The product of the rectangular map dimensions gives the original map area.

Determine the linear scale factor and representative fraction of Map Y.

Area enlargement factor =

144 / 36 = 4

; Linear enlargement factor =

\sqrt{4} = 2

. Map Y scale =

1 : (25,000 / 2) = 1 : 12,500

Area change ratio is the square of the linear scale factor (

n^2

). Enlarging a map decreases its RF denominator by the linear factor.

Calculate the representative fraction of Map Z.

Map Z RF denominator =

12,500 \times 4 = 50,000

, so scale of Map Z =

1 : 50,000

Reducing a map increases the RF denominator proportionately.

Determine the final map area on Map Z.

Linear reduction factor from Y to Z =

12,500 / 50,000 = 1/4

. Area reduction factor =

(1/4)^2 = 1/16

. Final area

A_Z = 144\text{ cm}^2 \times (1/16) = 9\text{ cm}^2

Applying the squared linear scale reduction factor to Map Y's area yields Map Z's area.

Key Concept

Map Enlargement, Reduction, and Area-to-Linear Scale Ratio Relationships

Estimated Time:3m 0s

Question 12187Question →

Along the low-lying floodplains of a major river basin, farming homesteads are built continuously along an elevated gravel terrace and embankment road to avoid seasonal inundation, while agricultural fields occupy the lower basin. Which of the following correctly identifies the primary physical site determinant and the resulting rural settlement pattern?

Dry-point site determinant and linear settlement pattern

Wet-point site determinant and linear settlement pattern

Dry-point site determinant and nucleated settlement pattern

Environmental push-factor site determinant and dispersed settlement pattern

Show answer & explanation

Answer: Dry-point site determinant and linear settlement pattern

Answer

Dry-point site determinant and linear settlement pattern

The correct answer identifies that building on high, well-drained gravel terraces above flood levels represents a dry-point site (seeking safety from water inundation). Aligning dwellings along an embankment road produces a linear settlement pattern.

Step-by-Step Solution

Analyze the physical site influence

Homesteads are constructed on high ground (gravel terrace) specifically to avoid seasonal river flooding.

Settlement location choices driven by the need to avoid excess water and flooding are classified as dry-point sites.

Analyze the spatial distribution of dwellings

Buildings are aligned continuously along an embankment road.

Settlements developing along linear transit features such as embankments, rivers, or roads exhibit a linear pattern.

Synthesize site factor and pattern

The correct combination is a dry-point site with a linear settlement pattern.

This pairs the flood-avoidance environmental factor with the ribbon-like spatial arrangement.

Key Concept

Dry-point site determinants and linear settlement patterns in floodplain geography

Estimated Time:2m 0s

Question 12188Question →

Environmental planners categorize energy resources based on their natural replenishment rates relative to human consumption timescales. Which of the following energy resources, despite originating directly from organic plant matter, is classified as a non-renewable natural resource because its natural formation requires millions of years of geological heat and pressure?

Lignite deposits formed from compressed prehistoric vegetation

Biogas generated from the anaerobic decomposition of agricultural waste

Charcoal produced through the carbonization of harvested firewood

Ethanol distilled from fermented carbohydrate crops such as sugarcane

Show answer & explanation

Answer: Lignite deposits formed from compressed prehistoric vegetation

Answer

Lignite deposits formed from compressed prehistoric vegetation

Lignite deposits formed from compressed prehistoric vegetation are non-renewable because the geological process of coalification requires millions of years under high pressure and temperature. Human extraction consumes these deposits at a rate infinitely faster than their natural formation, making their supply finite.

Step-by-Step Solution

Define the fundamental criterion for classifying a resource as non-renewable

A non-renewable resource is one whose rate of consumption exceeds its rate of natural regeneration, effectively making its global supply finite on human timescales.

Replenishment rate relative to human lifespan determines renewable versus non-renewable status.

Evaluate the geological timescale of lignite formation

Lignite formation (coalification) requires millions of years of burial, heat, and compression acting on prehistoric swamp vegetation.

Although organic in origin, its formation period is geological rather than biological.

Compare lignite with modern organic energy sources

Biogas, charcoal, and bioethanol regenerate within days to decades, whereas lignite takes millions of years.

Therefore, lignite is non-renewable, while the others are renewable energy sources.

Key Concept

Resource Replenishment Timescales and Fossil Fuel Classification

Estimated Time:1m 30s

Question 12189Question →

Match each geographic factor on the left with its corresponding impact on regional population density on the right.

Click a left item, then click its matching right item

Show answer & explanation

Answer

Fertile alluvial river valleys correspond to high population density via farming and water; Extreme desert aridity corresponds to sparse population density from water shortages; Major industrial and mining complexes correspond to dense clusters driven by employment; Steep mountain slopes correspond to low population density due to physical terrain constraints.

Population density is determined by a combination of physical factors (climate, soil, water supply, relief) and human factors (employment, industrialization, infrastructure). Fertile valleys and industrial centers attract dense populations, whereas arid deserts and steep slopes restrict human habitation.

Step-by-Step Solution

Identify physical factors favoring high human settlement concentration.

Abundant freshwater and arable alluvial soils in river valleys create ideal environmental conditions for high population density.

Water availability and food production capability are fundamental physical controls on population distribution.

Identify physical factors restricting human settlement density.

Deserts and steep mountain slopes impose severe ecological and logistical limits, leading to low population density.

Aridity limits agriculture, while steep relief hinders construction and transportation.

Identify human socio-economic factors driving high population density.

Industrialization and mineral exploitation generate economic opportunities that pull populations into dense urban-industrial nodes.

Economic incentives can overcome minor physical limitations to create high-density human agglomerations.

Key Concept

Physical and socio-economic factors influencing population distribution and density

Question 12190Question →

Enugu Global Ventures Plc extracted the following financial details for the year ended 31 December 2025:

- Gross profit: ₦3,200,000
- Rent and rates paid: ₦400,000
- Salaries and wages paid: ₦800,000
- Carriage outwards: ₦100,000
- Existing provision for doubtful debts: ₦30,000

Additional information at year-end:
1. Rent paid includes ₦40,000 prepaid for the next accounting period.
2. Salaries and wages of ₦60,000 remain accrued and unpaid.
3. The provision for doubtful debts is to be adjusted to a total of ₦80,000.

What is the net profit of the company for the year ended 31 December 2025?

₦1,830,000

₦1,870,000

₦1,800,000

₦1,930,000

Show answer & explanation

Answer: ₦1,830,000

Answer

The net profit for the year ended 31 December 2025 is ₦1,830,000.

The correct answer of ₦1,830,000 is derived by deducting total operating expenses of ₦1,370,000 from the gross profit of ₦3,200,000. Total operating expenses comprise Rent of ₦360,000 (₦400,000 paid less ₦40,000 prepayment), Salaries of ₦860,000 (₦800,000 paid plus ₦60,000 accrued), Carriage Outwards of ₦100,000, and an increase in Provision for Doubtful Debts of ₦50,000 (₦80,000 required less ₦30,000 existing).

Step-by-Step Solution

Calculate adjusted Rent and Rates expense

₦400,000 - ₦40,000 (prepayment) = ₦360,000

Prepaid expenses must be deducted because they relate to the future accounting period.

Calculate adjusted Salaries and Wages expense

₦800,000 + ₦60,000 (accrual) = ₦860,000

Accrued expenses must be added because they relate to the current accounting period.

Calculate increase in Provision for Doubtful Debts

₦80,000 (new provision) - ₦30,000 (existing provision) = ₦50,000

Only the net increase in provision is charged as an expense to the Statement of Profit or Loss.

Sum total operating expenses

₦360,000 (Rent) + ₦860,000 (Salaries) + ₦100,000 (Carriage Outwards) + ₦50,000 (Increase in Provision) = ₦1,370,000

Carriage outwards is a selling and distribution expense and must be included in operating expenses.

Calculate Net Profit

₦3,200,000 (Gross Profit) - ₦1,370,000 (Total Expenses) = ₦1,830,000

Net profit is determined by subtracting total operating expenses from gross profit.

Key Concept

Preparation of Company Statement of Profit or Loss with End-of-Year Adjustments

Question 12191Question →

Benue Manufacturing Enterprise transfers finished goods from its factory to its retail outlet at a transfer price that includes a mark-up of $25\%$ on cost. On 1 January 2025, the provision for unrealized profit was $\text{₦}2,000$ . On 31 December 2025, the stock of finished goods valued at transfer price was $\text{₦}25,000$ . What is the amount of closing provision for unrealized profit (in $\text{₦}$ ) to be deducted from finished goods inventory in the Statement of Financial Position?

Show answer & explanation

Answer: 5000

Answer

The closing provision for unrealized profit on finished goods inventory is \text{₦}5,000.

The closing inventory of finished goods is held at transfer price (cost + profit). To find the unrealized profit provision, the

25\%

mark-up on cost is converted to a

20\%

margin on transfer price (

\frac{25}{125} = \frac{1}{5}

). Applying

20\%

to the closing inventory value of

\text{₦}25,000

gives a closing provision of

\text{₦}5,000

Step-by-Step Solution

Convert mark-up on cost to margin on transfer price

Margin on transfer price = 20%

Since closing inventory is valued at transfer price, the profit element must be calculated using the margin on transfer price, where Margin = Mark-up / (1 + Mark-up) = 0.25 / 1.25 = 0.20.

Calculate closing provision for unrealized profit

Closing Provision = ₦5,000

Multiply the transfer price of closing inventory (₦25,000) by the profit margin rate (20%) to find the profit fraction contained in unsold inventory.

Key Concept

Provision for Unrealized Profit on Closing Inventory

Question 12192Question →

A commercial printing firm acquires heavy-duty industrial printing equipment under a hire purchase agreement. The cash price of the machinery is $₦4,500,000$ . The contract mandates an initial down payment of $20\%$ of the cash price, with the remaining balance paid in $18$ equal monthly installments of $₦225,000$ each. What is the total interest charge paid on this transaction in Naira?

Show answer & explanation

Answer: 450000

Answer

The total interest charged on the hire purchase transaction is ��450,000.

The total interest (or carrying charge) in a hire purchase transaction represents the difference between the total hire purchase price (deposit plus all installment payments) and the original cash price. Here, the initial deposit is 20% of ₦4,500,000, which equals ₦900,000. Total installment payments over 18 months amount to 18 × ₦225,000 = ₦4,050,000. Thus, the total hire purchase price is ₦900,000 + ₦4,050,000 = ₦4,950,000. Subtracting the cash price of ₦4,500,000 yields a total interest charge of ₦450,000.

Step-by-Step Solution

Calculate the initial deposit amount

₦900,000

The deposit is specified as 20% of the cash price of ₦4,500,000.

Calculate total monthly installment payments

₦4,050,000

18 monthly installments of ₦225,000 each equal 18 * 225,000 = ₦4,050,000.

Calculate the total hire purchase price

₦4,950,000

Hire Purchase Price equals Initial Deposit + Total Installments (₦900,000 + ₦4,050,000).

Deduct cash price from total hire purchase price to determine interest

₦450,000

Interest Charge = Hire Purchase Price - Cash Price (₦4,950,000 - ₦4,500,000).

Key Concept

Hire Purchase Price and Carrying/Interest Charge Calculation

Question 12193Question →

Match each independent branch reconciliation scenario on the left with the correct adjusting journal entry required to reconcile the inter-entity accounts at the end of the accounting period.

Click a left item, then click its matching right item

Show answer & explanation

Answer

Cash remitted by branch in transit is recorded by debiting Cash in Transit and crediting Branch Current in Head Office ledger. Goods sent by Head Office in transit are recorded by debiting Goods in Transit and crediting Head Office Current in Branch ledger. Expenses paid by Head Office on behalf of branch are recorded by debiting the expense account and crediting Head Office Current in Branch ledger. Goods returned by branch in transit are recorded by debiting Goods in Transit and crediting Branch Current in Head Office ledger.

Each scenario correctly pairs the timing discrepancy or inter-branch transaction with the proper double-entry journal entry in the entity's ledger that has not yet recognized the item. In-transit items are debited as temporary asset accounts and credited to the respective reciprocal current account.

Step-by-Step Solution

Identify which entity initiated each transaction and which entity has not yet recorded it due to timing differences.

Cash remittance and returned goods were initiated by the branch but not yet received by Head Office; goods dispatch and expense payments were initiated by Head Office but not yet recorded by the branch.

Adjusting entries must be made in the ledger of the receiving entity that has not yet reflected the transaction.

Apply double-entry rules for in-transit items in Head Office books.

Cash in transit requires Debit Cash in Transit / Credit Branch Current. Goods returned in transit require Debit Goods in Transit / Credit Branch Current.

Head Office must reduce the Branch Current asset/reciprocal balance for items the branch has already dispatched and credited.

Apply double-entry rules for in-transit items and allocated expenses in Branch books.

Goods sent in transit require Debit Goods in Transit / Credit Head Office Current. Allocated utility expenses require Debit Utility Expense / Credit Head Office Current.

The branch must recognize incoming inventory/expenses and credit the Head Office equity/reciprocal account to mirror Head Office entries.

Key Concept

Reciprocal ledger accounts reconciliation between Head Office and Independent Branch

Question 12194Question →

An agricultural community in the Guinea savanna zone of Nigeria experiences severe soil erosion and declining land productivity due to continuous over-exploitation of vegetation and soil resources. Which of the following best explains why environmental conservation is essential for this region?

It permits the rapid consumption of fossil fuel reserves under the assumption that non-renewable resources replenish naturally over short harvesting cycles.

It facilitates the rational and planned management of natural resources to ensure continuous supply while preserving ecological stability.

It focuses solely on post-project auditing after land degradation has occurred rather than implementing proactive resource management strategies.

It transfers land conservation oversight exclusively to specialized oil spill detection agencies like NOSDRA instead of broader environmental management frameworks.

Show answer & explanation

Answer: It facilitates the rational and planned management of natural resources to ensure continuous supply while preserving ecological stability.

Answer

Environmental conservation facilitates the rational and planned management of natural resources to ensure continuous supply while preserving ecological stability.

Environmental conservation focuses on the rational, planned, and sustainable utilization of natural resources. In agricultural regions facing degradation, conservation ensures that soils and plant cover are managed to provide economic productivity while safeguarding the underlying ecosystem for future generations.

Step-by-Step Solution

Define environmental conservation in a geographical context.

Environmental conservation involves the planned management, protection, and sustainable use of natural resources (such as soil, water, flora, and fauna) to prevent depletion.

Establishing the precise definition distinguishes conservation from total resource exploitation or passive destruction.

Relate the concept to the scenario of agricultural land degradation.

The community needs to adopt practices that maintain soil fertility and vegetation cover while still meeting current agricultural needs.

The primary goal of conservation is meeting present human socio-economic needs without compromising the capacity of ecosystems to support future generations.

Key Concept

Concept and Need for Environmental Conservation

Question 12195Question →

A sole trader withdrew goods costing $₦28,000$ , which had a selling price of $₦35,000$ , from the business for personal domestic use. What is the correct double entry to record this adjustment?

Debit Drawings account

₦28,000

, Credit Purchases account

₦28,000

Debit Drawings account

₦35,000

, Credit Sales account

₦35,000

Debit Capital account

₦28,000

, Credit Sales account

₦28,000

Debit Purchases account

₦28,000

, Credit Drawings account

₦28,000

Show answer & explanation

Answer: Debit Drawings account $₦28,000$ , Credit Purchases account $₦28,000$

Answer

Debit Drawings account

₦28,000

, Credit Purchases account

₦28,000

When a proprietor takes goods from the business for personal use, the transaction must be recorded at cost price (

₦28,000

). The Drawings account is debited to reflect the increase in personal drawings, and the Purchases account is credited to reduce the cost of inventory available for sale.

Step-by-Step Solution

Identify the valuation basis for owner's withdrawals of inventory.

Goods withdrawn for personal consumption are valued at cost price (

₦28,000

), because a trader cannot make a profit from themselves.

According to accounting principles, withdrawals are recorded at cost price, ignoring any mark-up or selling price.

Determine the account to debit.

Debit Drawings account with

₦28,000

Drawings represent resources taken by the proprietor, which reduces total owner's equity.

Determine the account to credit.

Credit Purchases account with

₦28,000

Goods available for resale are reduced when the proprietor takes inventory for private use, so Purchases must be reduced.

Key Concept

Treatment of Goods Withdrawn by Owner for Personal Use

Estimated Time:1m 0s

Question 12196Question →

Vanguard Manufacturing Company extracted the following closing inventory balances at the end of its accounting period:

Inventory Category	Amount (₦)
Raw materials	65,000
Work-in-progress	35,000
Finished goods (at transfer value)	100,000

Finished goods are transferred from the factory to the trading account at cost plus a $25\%$ mark-up. What is the total carrying value of inventories (in ₦) to be presented under current assets in the statement of financial position?

Show answer & explanation

Answer: 180000

Answer

The total carrying value of inventories to be presented under current assets in the statement of financial position is ₦180,000.

The total carrying amount of inventories presented under current assets is ₦180,000. This is calculated by eliminating the ₦20,000 unrealized profit provision (25/125 × ₦100,000) from finished goods to reduce it to its cost of ₦80,000, then adding raw materials (₦65,000) and work-in-progress (₦35,000).

Step-by-Step Solution

Calculate the provision for unrealized profit included in the closing finished goods inventory.

Provision for unrealized profit = ₦20,000.

Since finished goods are transferred at cost plus a 25% mark-up, the unrealized profit margin contained in the transfer price is 25/125 (or 20%).

Deduct the provision for unrealized profit from the finished goods inventory at transfer value.

Net carrying value of finished goods = ₦80,000.

Inventories must be stated at original prime/factory cost on the balance sheet by removing the internal unrealized manufacturing profit.

Sum all inventory components (raw materials, work-in-progress, and net finished goods).

Total inventory carrying amount = ₦180,000.

All three inventory elements are aggregated and presented as a single total or sub-itemized under current assets.

Key Concept

Balance sheet presentation of manufacturing inventories requires deducting the provision for unrealized profit from closing finished goods to ensure all inventories are valued at actual cost under current assets.

Question 12197Question →

The Earth completes a full rotation of $360^\circ$ on its axis every 24 hours. How many degrees of longitude does the Earth rotate through in 3 hours?

Show answer & explanation

Answer: 45

Answer

45 degrees

Because the Earth completes one full

360^\circ

rotation in 24 hours, its speed of rotation is

15^\circ

per hour (

360^\circ \div 24

). In a time span of 3 hours, it turns through

15^\circ \times 3 = 45^\circ

of longitude.

Step-by-Step Solution

Calculate the rotation rate of the Earth per hour.

15 degrees per hour

The Earth turns 360 degrees in 24 hours, so 360 divided by 24 equals 15 degrees per hour.

Calculate the total longitudinal rotation in 3 hours.

45 degrees

Multiplying the rate of 15 degrees per hour by 3 hours gives 45 degrees.

Key Concept

Earth's Rotational Angular Speed and Longitude

Estimated Time:45s

Question 12198Question →

Match each rock in Column I with its corresponding mode of formation or classification in Column II.

Click a left item, then click its matching right item

Show answer & explanation

Answer

Basalt matches fine-grained extrusive igneous rock formed by rapid cooling of surface lava; Marble matches non-foliated metamorphic rock produced by thermal metamorphism of limestone; Coal matches organically formed sedimentary rock derived from compacted vegetative matter; Slate matches foliated metamorphic rock resulting from low-grade regional metamorphism of shale.

Each rock is paired strictly with its genesis: Basalt is formed by rapid lava cooling at the surface (extrusive igneous), Marble is created by thermal metamorphism of limestone, Coal originates from compressed organic plant material (sedimentary), and Slate originates from low-grade regional metamorphism of shale.

Step-by-Step Solution

Analyze the formation process of Basalt.

Basalt crystallizes quickly from molten lava on the Earth's exterior.

Extrusive volcanic activity produces fine-grained igneous rock structures.

Analyze the transformation of Marble.

Marble forms from limestone exposed to geothermal heat.

Thermal metamorphism converts sedimentary limestone into crystalline calcite rock.

Analyze the origin of Coal.

Coal accumulates from decayed organic plant deposits in swampy conditions.

Accumulation and compaction of plant material form organic sedimentary rocks.

Analyze the origin of Slate.

Slate develops from shale under mild metamorphic pressure.

Low-grade regional metamorphism realigns clay particles within shale to form slate.

Key Concept

Classification of rocks based on their origin, parent material, and formation processes.

Question 12199Question →

Match each population growth concept or metric on the left with its corresponding analytical definition or operational condition on the right.

Click a left item, then click its matching right item

Show answer & explanation

Answer

Population Momentum matches the demographic phenomenon of continued growth due to a broad young age-structure base; Demographic Dividend matches the economic growth potential from a favorable decline in dependency ratio; Net Reproduction Rate (

NRR = 1.0

) matches the replacement equilibrium accounting for female survival to childbearing age; Doubling Time matches the calculation of

70

divided by the annual growth rate percentage.

Each demographic concept is matched strictly to its operational definition: Population Momentum explains growth inertia from age-structure base; Demographic Dividend defines economic opportunity from reduced dependency ratios; Net Reproduction Rate (

NRR=1.0

) specifies generational female replacement considering survival rates; and Doubling Time defines exponential growth duration via the Rule of 70.

Step-by-Step Solution

Analyze Population Momentum

Identify that momentum stems from youth-heavy age structures where historical high fertility maintains growth despite current replacement fertility.

Structural inertia keeps birth counts high even when individual fertility rates drop.

Analyze Demographic Dividend

Identify that this dividend occurs during Demographic Transition Stage 3 when child dependency drops while elder dependency remains low.

Economic productivity increases when a higher proportion of the population is in active labor force cohorts.

Analyze Net Reproduction Rate (

NRR = 1.0

)

Distinguish NRR from Total Fertility Rate (TFR) by recognizing that NRR explicitly incorporates female mortality risk before reaching reproductive age.

NRR measures daughter survival rates to establish true generational population replacement.

Analyze Doubling Time (Rule of 70)

Link doubling time estimation to exponential growth principles where doubling period equals

70 / r

(where

r

is percentage growth rate).

Standard demographic calculation derived from the natural logarithm approximation

\ln(2) \approx 0.693

Key Concept

Demographic Concepts and Population Growth Metrics

Question 12200Question →

Complete the statement below regarding rural settlement spatial arrangements by supplying the appropriate geographical terms for each blank.

Fill in the blanks below

Rural settlements that develop along transport lines such as major roads, rivers, or canals typically form a pattern, whereas settlements that radiate outward along multiple routes from a central focal point such as a road intersection or market square exhibit a pattern.

Show answer & explanation

Answer

The first blank is 'linear' (or ribbon) and the second blank is 'radial' (or star-shaped / nodal).

Linear (or ribbon) settlements stretch along line features like roads, rivers, or dykes to maximize access to transport or water. Radial (or star-shaped) settlements form when buildings expand along several roads converging at a central nodal location like a market or junction.

Step-by-Step Solution

Analyze the spatial determinant described in the first part of the statement.

Settlements aligning along linear infrastructure features like roads or riverbanks expand in a narrow line, which defines a linear (or ribbon) settlement pattern.

Transport lines force building expansion parallel to the feature to maintain easy transit access.

Analyze the spatial determinant described in the second part of the statement.

Buildings spreading outwards along several converging routes from a central focal point (crossroads, market square) form a radial (star-shaped or nodal) pattern.

Growth follows outwards along each converging route from the central node.

Key Concept

Rural Settlement Morphologies and Spatial Determinants

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