To find the opportunity cost of producing one unit of Good B in terms of Good A, we first need to understand the production possibilities.
The maximum production is:
- 20,000 units of Good A
- 5,000 units of Good B
To determine the opportunity cost, we can calculate how many units of Good A must be given up to produce one unit of Good B.
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At maximum production, if the country produces 5,000 units of Good B, the amount of Good A it could produce is:
\[ 20,000 \text{ units of Good A} \quad \text{(if producing only Good A)} \]
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If the country produces 5,000 units of Good B, it uses up resources that could have produced Good A. The opportunity cost of producing Good B can be calculated by finding out how many units of Good A are foregone for each unit of Good B produced:
For 5,000 units of Good B, the foregone Good A is:
\[ 20,000 \text{ Good A} \div 5,000 \text{ Good B} = 4 \text{ Good A for each Good B} \]
Thus, the opportunity cost of producing one unit of Good B is 4 units of Good A.
The correct response is: 4 units of Good A.