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Economics Past Questions and Answers

Topic: The Theory of Consumer Behaviour

Jamb Economics Questions - The Theory of Consumer Behaviour

Question 61:
A consumer of a single commodity is in equilibrium when
  • A He can equate his demand with price
  • B He equates marginal utility and price
  • C He can equate his marginal and total utilities
  • D His marginal utility is equal to zero
View Answer & Explanation
Question 62:
From the graph above, the consumer is at equilibrium at point
  • A K
  • B L
  • C M
  • D J
View Answer & Explanation
Question 63:
Given the table demonstrating the law of diminishing marginal utility below, what is the value of X?




No. of oranges Consumed Total Utility Average Utility Marginal Utility
1 9 9 -
2 16 8 x
3 24 8 6
4 30 7.5 4
5 34 6.8 y
6 36 6 2
7 36 5.1 0




  • A 0.5
  • B 7
  • C 8
View Answer & Explanation