Question 1
A firm produced 3,000 units of its product and sold them at $6.00 each. Its cost of operation during the period is listed in the table below:
| S/N | ITEM | AMOUNT ($) | 
| 1. | Processing machine | 2,000 | 
                        Table 1
	
- For  the period of operation as shown in Table  1, determine the firm’s:
	- fixed cost;
- variable cost;
- average cost.
 
- Calculate the firm’s total profit for the period.
- Calculate the tax paid by the firm if the tax was 10% of its profit.
- Distinguish between fixed cost and variable cost of any given firm.
This is one of the data response questions  and it was attempted by few candidates. The question required the candidates to  determine the firm’s fixed, variable and average costs in the (a) part,  calculate the firm’s profit and tax in the (b) and (c) parts respectively and  to distinguish between fixed and variable costs of a firm. Most candidates who  attempted this question were able to determine the firm’s cost in the (a) part  and firm’s profit and tax paid by the firm in the (b) and (c) parts of the  question respectively but only few of them could adequately distinguish between  fixed and variable costs of a firm, hence they could not obtain the maximum  mark.
  The  candidates were expected to provide the following answers to score higher  marks.
  
- 
- Firm’s  Fixed Cost = Processing  machine($2,000) + Manager’s salary($1,500) + Factory rent($1,200)       
 = $4,700
 
 
- Firm’s Variable Cost = Wages to casual labour($2,500) + Fuel($600)  + Raw materials($1,400) + electricity bill($800)
 = $5,300
- Total  cost =  FC + VC
 = $4,700 + $5,300
 OR
 = $2,000+$1,500+$2,500+$600+$1,400+$1,200+$800
 = $10,000
 Average cost = TC = $10,000
 Q 3,000
 = $3.33
 
 
- Firm’s  Fixed Cost = Processing  machine($2,000) + Manager’s salary($1,500) + Factory rent($1,200)       
- Total profit           = Total revenue - Total cost   
  = (3,000 x $6) - ($10,000) = $18,000 - $10,000 = $8,000 
- Tax paid =  10% of $8,000
 = 10 x $8,000
 100 1
 = $800
- Fixed cost is cost which does not vary with level of output e.g. plants and machinery, while variable cost on the other hand is cost which varies with the level of output
