Question

in art class students are mixing black and white paint to make gray paint. anthony mixes 1 cup of black paint and 4 cups of white paint. sofia mixes 1 cup of black paint and 4 cups of white paint. whose gray paint will be darker?

answer

○ anthony’s gray paint will be darker.
○ sofia’s gray paint will be darker.
○ the two gray paints will be equally dark.

Explanation:

To determine whose gray paint is darker, we compare the ratio of black to total paint for each. For Anthony: black = 1, white = 4, total = 1 + 4 = 5. Ratio of black is $\frac{1}{5}$. For Sofia: black = 1, white = 4, total = 5. Ratio of black is also $\frac{1}{5}$. Since the ratio of black paint (which determines darkness) is the same for both, their gray paints will be equally dark.

Answer:

The two gray paints will be equally dark.