Final answer:
To make a darker shade of blue, you can increase the amount of blue tint relative to the white paint used.
Step-by-step explanation:
To find a ratio that would result in a darker shade of blue, we need to consider the ratio of blue tint to white paint. In this case, ama mixes 2 ounces of blue tint with 3 gallons of white paint to make 1 can of sky-blue paint.
If we want a darker shade of blue, we can increase the amount of blue tint relative to the white paint. For example, we can double the amount of blue tint while keeping the amount of white paint the same. This would result in a ratio of 4 ounces of blue tint to 3 gallons of white paint, creating a darker shade of blue.