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Friday, 17 April 2026
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Economics Past Questions and Answers

Topic: The concepts of cost

Jamb Economics Questions - The concepts of cost

Question 6:
The additional cost incurred by producing an additional unit of output is known as
  • A Fixed cost
  • B Total cost
  • C Average cost
  • D Marginal cost
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Question 7:
The short-run average variable cost of a firm will rise owing to
  • A The expansion of factory space
  • B The building of new warehouse
  • C An increase in the cost of labour
  • D An increase in the salaries of directors
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Question 8:
Given that FC = N500, VC = N1,500, and Q = 50 units. Find the average cost of the product.
  • A N30
  • B N40
  • C N10
  • D N20
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Question 9:
Rent and administrative expenses are examples of
  • A Average fixed costs
  • B Average variable costs
  • C Fixed costs
  • D Variable costs
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Question 10:
Marginal cost is
  • A Lowest cost of producing goods
  • B The cost of production of the most efficient firm in the industry
  • C Cost of production of the most inefficient firm in the industry
  • D The cost of production of the last or extra unit of goods produced by a firm
  • E The cost of production at which the minimum profit is obtained by a firm
View Answer & Explanation