Question

On Mark’s first day, he ran 5 laps of the track without stopping. After training for several weeks, he was able to run 9 laps without stopping. To the nearest percent, what is the percent increase from Mark’s first run to his most recent?

Answers

GPT 3.5
The percent increase can be calculated using the following formula:

Percent Increase = ((New Value - Old Value) / Old Value) x 100

Old Value = 5 laps
New Value = 9 laps

Percent Increase = ((9 - 5) / 5) x 100
Percent Increase = (4 / 5) x 100
Percent Increase = 0.8 x 100
Percent Increase = 80%

Therefore, the percent increase from Mark's first run to his most recent run is 80%.