Search SchoolNGR

Saturday, 18 April 2026
Register . Login

Economics Past Questions and Answers

Topic: The concepts of cost

Jamb Economics Questions - The concepts of cost

Question 46:
A firm with marginal cost equals to its marginal revenue will produce the equilibrium output if it is in?
  • A Pure competition only
  • B Pure monopoly only
  • C Monopolistic competition only
  • D Any type of market
View Answer & Explanation
Question 47:
\(\begin{array}{c|c}
\text{Quantity of singlets} & \text{Short run total costs(N)} \\
0 & 1,000 \\
10 & 1,200 \\
20 & 1,400 \\
30 & 1,600 \\
40 & 1,800 \\
\end{array}\)
The short run total costs for different levels of output for a firm producing singlets are shown above. Calculate the variable cost per unit at an output of 20.
  • A N1000
  • B N400
  • C N70
  • D N20
View Answer & Explanation
Question 48:
In the theory of production and cost, the average total cost of a firm is minimized when the marginal cost curve cuts the average total cost curve at its?
  • A Lowest point
  • B Middle point
  • C Maximum point
  • D Downward slopping section
View Answer & Explanation
Question 49:
Opportunity cost is an economic concept which describes the?
  • A Monetary equivalent of the utility of a commodity
  • B Amount of time or money invested on a commodity
  • C Sacrifice made for the satisfaction of a want
  • D Cost of retaining an optimum level of production of commodities
View Answer & Explanation
Question 50:
The current stage of the economy is depicted in curve 1. Point P suggests that the economy is
  • A Reaching full employment but not full prodduction
  • B Attaining full production but not full employment
  • C Under capitalized
  • D Attaining both full employment and full production
View Answer & Explanation