Question

roman can type 3 pages in 60 minutes. how many more pages can roman type in 90 minutes than in 60 minutes? assume the relationship is proportional and he types at a constant rate.

Explanation:

Step1: Calculate typing rate

The rate is $\frac{3}{60}=\frac{1}{20}$ pages per minute.

Step2: Calculate pages typed in 90 minutes

The number of pages in 90 minutes is $\frac{1}{20}\times90 = 4.5$ pages.

Step3: Find the difference

The difference is $4.5 - 3=1.5$ pages.

Answer:

1.5