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Monday, 03 August 2026
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Economics Past Questions and Answers

Jamb Economics Questions

Question 306:
\(\begin{array}{c|c}
\text{Units of variable factor} & \text{Total
Product} \\
\hline
1 & 25 \\
\hline
2 & 31 \\
\hline
3 & 40 \\
\hline
4 & 48 \\
\hline
5 & 55 \\
\end{array}\)


The marginal product at the fifth variable factor is
  • A 7
  • B 6
  • C 5
  • D 9
View Answer & Explanation
Question 307:
The financial institution known as a building society is
  • A Commercial bank
  • B Central bank
  • C Mortgage bank
  • D Development bank
View Answer & Explanation
Question 308:
A line in commodity space which shows the constraints imposed by his budget, his money income and the price of goods purchased is
  • A Supply curve
  • B Liquidity preference
  • C Budget line
  • D Demand curve
View Answer & Explanation
Question 309:
The following equations relate to an open economy with a government sector. E = aggregate expenditure on domestically produced goods, C = Consumption, I = Investment, G = Government expenditure, T = taxes, M = imports, X = Exports. Which equation is correct
  • A E = C + I + G
  • B E = C + I + G + M – X
  • C E = C + I + G + X — M
  • D E = C + I + G — T + M — X
View Answer & Explanation
Question 310:
\(\begin{array}{c|c}
\text{Units of labour} & \text{Fixed capital} & \text{Total product} & \text{Average product} & \text{Marginal product} \\
\hline
0 & 10 & - & - & - \\
\hline
1 & 10 & 10 & 10 & 10 \\
\hline
2 & 10 & 25 & ? & 15 \\
\hline
3 & 10 & 50 & 16.7 & 25 \\
\hline
4 & 10 & 80 & 20.0 & 30 \\
\hline
5 & 10 & 106 & 21.2 & 26 \\
\end{array}\)

Calculate the average product when the 2nd labour was employed 12.5
  • A 12.5
  • B 12
  • C 15
  • D 10
View Answer & Explanation