To find out how long it will take Carla to read the full assignment of 20 pages, we can start by calculating her reading speed.
Carla takes 10 minutes to read 4 pages.
First, we find how many sets of 4 pages are in 20 pages:
\[ \frac{20 \text{ pages}}{4 \text{ pages/set}} = 5 \text{ sets} \]
Each set takes her 10 minutes, so we multiply the number of sets by the time it takes for each set:
\[ 5 \text{ sets} \times 10 \text{ minutes/set} = 50 \text{ minutes} \]
So, it will take Carla 50 minutes to read the full assignment.
The answer is: 50 minutes.
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