Final answer:
The new color will be darker because the new ratio of red to white paint is 4:2, or simplified to 2:1, meaning there is twice as much red as white.
Step-by-step explanation:
When Trent adds one more teaspoon of red paint to the mixture with a ratio of 3:2 of red to white paint, the new ratio becomes 4:2.
This is because he added one part red, making it a total of four parts red to the existing two parts white.
The new color will be a darker shade of pink or light red, because the amount of red paint is increased while the amount of white paint remains the same.
The mixture is now more red than before, which makes the resulting color darker compared to the previous mixture.
Therefore, the new ratio of red to white paint is 4:2, which simplifies to 2:1, indicating that there is twice as much red paint compared to white paint.
This could also be described as a more intense shade or a deeper hue of pink/red.