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To determine if Ruben and Claire are running at the same rate of speed, we can calculate their average daily mileage:
- Ruben runs 16 miles over 4 days:
\[
\text{Ruben's average} = \frac{16 \text{ miles}}{4 \text{ days}} = 4 \text{ miles per day}
\]
- Claire runs 12 miles over 3 days:
\[
\text{Claire's average} = \frac{12 \text{ miles}}{3 \text{ days}} = 4 \text{ miles per day}
\]
Since both Ruben and Claire run an average of 4 miles per day, they are running at the same rate of speed.
The answer is:
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