Question

a barrel of oil is extracted at a cost of $51 then transparent to and from the refinery at a cost of $6 each way. the oil is refined 3 times at $9 per time. whats the profit, in dollars per barrel, if one barrel is sold for $93

Answer 1

93 (profit) - expenses
Expenses: 51 (extraction) + 12 ($6 to and from) + 27 ($9 x3 for refining)
Total expenses equals 90, so
Profit - expenses
93 - 90
The answer is C, 3