Question

A recipe for pastry has flour, butter, and water mixed in the ratio 24:8:3. If Fiona follows the recipe and uses 3 cups of flour, how many cups of butter should she use?

a) 1 cup of butter
b) 2 cups of butter
c) 1.5 cups of butter
d) 3 cups of butter

Answer 1

To find the number of cups of butter Fiona should use, we can set up a proportion based on the given ratio of flour, butter, and water. By cross multiplying, we find that Fiona should use 1 cup of butter.

Step-by-step explanation:

To find the number of cups of butter Fiona should use, we can use the given ratio of flour, butter, and water. The ratio is 24:8:3, which means for every 24 cups of flour, there are 8 cups of butter. If Fiona is using 3 cups of flour, we can set up a proportion:

24 cups of flour / 8 cups of butter = 3 cups of flour / x cups of butter

By cross multiplying, we get: 24x = 8 * 3 => 24x = 24 => x = 1

Therefore, Fiona should use 1 cup of butter.