題組內容
7. At a variable cost of $32 per ounce, 10,000 ounces of silver may be extracted from a silver mine. Regardless of whether the mine is open or closed, the annual fixed expenses of ownership are $40,000. Silver may sell for $48 an ounce in half of the years, while it can only sell for $24 in the other years. Ignore taxes.
(a) \( (5\%) \) What is the average cash flow you will receive from the mine if it is always kept in operation and the silver always is sold in the year it is mined?