Question
Ilana ran 2 laps around the field in 8 minutes. What was her average speed, in laps per minute?
StartFraction 1 Over 10 EndFraction of a lap per minute
One-fourth of a lap per minute
4 laps per minute
10 laps per minute
StartFraction 1 Over 10 EndFraction of a lap per minute
One-fourth of a lap per minute
4 laps per minute
10 laps per minute
Answers
GPT-4o mini
To find Ilana's average speed in laps per minute, we need to calculate how many laps she completed in one minute.
We know she ran 2 laps in 8 minutes. Therefore, to find her speed in laps per minute, we can use the formula:
\[
\text{Average speed (in laps per minute)} = \frac{\text{Total laps}}{\text{Total time (in minutes)}}
\]
Substituting in the values:
\[
\text{Average speed} = \frac{2 \text{ laps}}{8 \text{ minutes}} = \frac{2}{8} = \frac{1}{4} \text{ laps per minute}
\]
Thus, Ilana's average speed is **one-fourth of a lap per minute**. Therefore, the correct answer is:
**One-fourth of a lap per minute.**
We know she ran 2 laps in 8 minutes. Therefore, to find her speed in laps per minute, we can use the formula:
\[
\text{Average speed (in laps per minute)} = \frac{\text{Total laps}}{\text{Total time (in minutes)}}
\]
Substituting in the values:
\[
\text{Average speed} = \frac{2 \text{ laps}}{8 \text{ minutes}} = \frac{2}{8} = \frac{1}{4} \text{ laps per minute}
\]
Thus, Ilana's average speed is **one-fourth of a lap per minute**. Therefore, the correct answer is:
**One-fourth of a lap per minute.**