At Metallåtervinning i Storuman AB (Metalrecycling company) they buy and sell
scrap iron. They have recived an offer to buy one special kind of brass which
contains 68% copper and remaining zinc. How much copper contains a part which
weight is 13 250 kilogram?
The price for copper vary from day to day. How much do they earn if they wait
until the price increased 4,7% if the price is 13,05 SEK/kilogram today and they
have 4 300 kilogram clean copper.