Coffee

In stock are three kinds of branded coffee prices:

I. kind......6.9 USD/kg
II. kind......8.1 USD/kg
III. kind.....10 USD/kg

Mixing these three species in the ratio 8:6:3 create a mixture. What will be the price of 1100 grams of this mixture?


Result

x =  8.66 USD

Solution:

Solution in text x =







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