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Tuesday, 18 August 2026
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Economics Past Questions and Answers

Topic: Theory of Costs and Revenue

Jamb Economics Questions - Theory of Costs and Revenue

Question 91:
A firm's shut-down point is reach when the average revenue fails to cover the?
  • A Average variable cost
  • B Marginal cost
  • C Average total cost
  • D Average fixed cost
View Answer & Explanation
Question 92:
In the long-run, a monopolist maximized his profit when the marginal cost equals?
  • A Total revenue
  • B Marginal revenue
  • C Average revenue
  • D Price
View Answer & Explanation
Question 93:
Which of the following is an example of a fixed cost?
  • A Fuel cost
  • B Electricity bill
  • C Rent on building
  • D Transportation cost
View Answer & Explanation
Question 94:
A student has N30.00 with which to buy a ruler costing N18.00 and an exercise book costing N25.00. If he buys the exercise book, his opportunity cost is?
  • A The ruler
  • B The exercise book
  • C N25.00
  • D 18.00
View Answer & Explanation
Question 95:
As a firm increases its output, the average fixed cost?
  • A Tends to rise continuously
  • B Remains constant
  • C Rises and then falls
  • D Tends to decreased continuously
View Answer & Explanation