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Friday, 14 August 2026
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Economics Past Questions and Answers

Topic: National Income

Jamb Economics Questions - National Income

Question 6:
If the marginal propensity to save is 0.8, calculate the multiplier?
  • A 1.25
  • B 5.00
  • C 1.30
  • D 2.25
View Answer & Explanation
Question 7:
One of the major uses of national income statistics in Nigeria is to
  • A Equally distribute national income among citizens
  • B Determine the total population
  • C Compare population growth among nations
  • D Estimate per capita income
View Answer & Explanation
Question 8:
Disposable income is total income
  • A Less tax
  • B Divided by tax
  • C Plus tax
  • D Multiplied by tax
View Answer & Explanation
Question 9:
The income of an individual increases from N150 to N250 and his consumption rate increases from N100 to N150. Calculate the Marginal Propensity to Consume
  • A 2
  • B 0.4
  • C 1
  • D 0.5
View Answer & Explanation
Question 10:
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