Question

Diana uses 50 grams of coffee beans to make 80 fluid ounces of coffee. When company comes, she makes 240 fluid ounces of coffee. How many grams of coffee beans does Diana use when company comes?

Answer 1

We have the following:

We can solve this problem by means of a proportion, since if with 50 grams we make 80 ounces of liquid coffee, we calculate the proportion from there and then multiply by the amount we want to know that are 240 ounces of liquid coffee

$(\frac{50}{80}\cdot\frac{g}{oz})\cdot(\frac{240z}{g})=150g$

Therefore you need an amount of 150 grams of coffee beans