-The Cost of an Extra Unit of Coal in Australia

question 24

Multiple Choice

$$~~~~~~~~~~~~~~~~~~~~{ \text { United States } } ~~~~~ { \text { Australia } } \\\begin{array} { c c c c c } \text { Possibility } & \text { Oil } & \text { Coal } & \text { Oil } & \text { Coal } \\\text { A } & 100 & 0 & 200 & 0 \\\text { B } & 50 & 25 & 100 & 20 \\\text { C } & 0 & 50 & 0 & 40\end{array}$$
-The cost of an extra unit of coal in Australia in terms of oil given up is

• A)100.
• B)20.
• C)5.
• D)1/5.

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