Suppose That a New Alloy Is Invented Which Uses Copper

Multiple Choice

suppose that a new alloy is invented which uses copper and zinc in fixed proportions where 1 unit of output requires 5 units of copper and 3 units of zinc for each unit of alloy produced.If no other inputs are needed, the price of copper is $4, and the price of zinc is $2, what is the average cost per unit when 3,000 units of the alloy are produced?

A) $26
B) $13.33
C) $666.67
D) $.67
E) $13,333.33