if 64' feet of clean wire =1 lb at $ 2.10 a lb and 12'ft of ins wire =1 lb at .80 cents a lb which one would make u more money in long run

Question

I was wondering if it would be worth it to clean wire or just as good not cleaning it in the long run 

Answer 1

Assuming length is more valuable than weight and these are the prices you'll be selling at, then divide each wire's cost by the length and see which ratio is higher (i.e. which gives you more money).

 

How would the problem change if weight was more valuable than length, or if these were the prices you were purchasing the materials at rather than the prices you were selling at?