Which of the following best represents the average rate at which a person can quickly walk?

- 3 steps per hour
- 3 steps per second
- 30 steps per minute
- 30 steps per second

Which of the following best represents the average rate at which a person can quickly walk?

- 3 steps per hour
- 3 steps per second
- 30 steps per minute
- 30 steps per second