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Economics (AS & A Level) · May / June 2025 · Paper 13 · Question 3

9708Scarcity, choice and opportunity cost

A firm produces 100 units of good Y and 200 units of good X with a fixed amount of resources. This firm wants to increase production of good Y to 120 units and as a result it can now only produce 170 units of good X. What is the opportunity cost of producing the extra 20 units of good Y?

  1. A20 units of good X
  2. B30 units of good X
  3. C120 units of good X
  4. D170 units of good X

As printed in the paper

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Correct answer: B. 30 units of good X

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