Question

Difficulty: HardFactory Overheads and Indirect Manufacturing Costs

The following financial details were extracted from the books of Babs Flour Mills for the year ended 31st December 2025:

Expense ItemAmount (₦)
Direct raw materials consumed1,500,000
Direct factory wages paid800,000
Indirect factory labor420,000
Factory machinery depreciation250,000
Machine lubricants and factory consumables90,000
Rent and rates paid600,000
Factory insurance paid160,000

Additional information:
1. Rent and rates paid includes ₦100,000 paid in advance for 2026. Rent is apportioned 80% to the factory and 20% to the administrative office.
2. Factory insurance has an outstanding accrued liability of ₦40,000 at the end of the financial year.

What is the total amount of factory overheads to be charged in the Manufacturing Account for the year?

  1. ₦1,360,000Answer
  2. B
    ₦1,440,000
  3. C
    ₦2,160,000
  4. D
    ₦1,560,000

Answer

The total factory overheads to be charged in the Manufacturing Account is ₦1,360,000.
The correct total of ₦1,360,000 is derived by aggregating all indirect costs attributable to production: Indirect labor (₦420,000), Factory portion of rent after deducting prepayment [80% × (₦600,000 - ₦100,000) = ₦400,000], Factory machinery depreciation (₦250,000), Machine lubricants and consumables (₦90,000), and Factory insurance after adding accruals (₦160,000 + ₦40,000 = ₦200,000). Direct raw materials and direct wages belong to Prime Cost and are excluded.

Step-by-Step Solution

1
Calculate the factory portion of rent and rates after adjusting for prepayments.
Total rent expense for the period = ₦600,000 - ₦100,000 (prepayment) = ₦500,000. Factory share (80%) = 80% × ₦500,000 = ₦400,000.
Prepaid expenses must be deducted to reflect only the current period's cost, and non-factory allocations must be excluded.
2
Calculate the total factory insurance expense including accruals.
Factory insurance for the period = ₦160,000 + ₦40,000 (accrual) = ₦200,000.
Accrued expenses incurred in the period must be added to the cash paid.
3
Identify all indirect manufacturing cost items and sum them up.
Indirect factory labor (₦420,000) + Apportioned factory rent (₦400,000) + Factory machinery depreciation (₦250,000) + Machine lubricants and consumables (₦90,000) + Adjusted factory insurance (₦200,000) = ₦1,360,000.
Factory overheads consist strictly of indirect manufacturing costs, excluding direct costs (raw materials and direct wages).

Key Concept

Factory Overheads and Indirect Manufacturing Costs
Estimated Time:2m 0s
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