JAMB Economics 2018 past questions and answers

3 questions. Try each one, then open the answer to check yourself and read the explanation.

Question 27

Theory of Consumer Behaviour

From the graph above the consumer will attain equilibrium at point

Diagram for this question
  1. A.J
  2. B.K
  3. C.M
  4. D.L
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Answer: B (K)

Explanation

The consumer is in equilibrium where the budget line just touches the highest indifference curve it can reach, which is point K on U2.

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Question 34

National Income

Given that Y = C + I, where C = 50 + 0.75Y and I = ₦ 45m, what is the equilibrium level of income?

  1. A.₦20m
  2. B.₦380m
  3. C.₦200m
  4. D.₦180m
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Answer: B (₦380m)

Explanation

Y = 50 + 0.75Y + 45, so 0.25Y = 95 and Y = 95 ÷ 0.25 = ₦380m.

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Question 35

Theory of Production

From the diagram above, the optional point of production is

Diagram for this question
  1. A.R
  2. B.T
  3. C.S
  4. D.U
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Answer: C (S)

Explanation

The best (least-cost) point is where the isocost line just touches the highest isoquant it can reach: point S on isoquant II.

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