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

A. 3 steps per hour
B. 3 steps per second
C. 30 steps per minute
D. 30 steps per second



Answer :

Let's determine the best option that represents the average rate at which a person can quickly walk.

1. 3 steps per hour:
- If a person takes 3 steps in an hour, this means they are moving very slowly. Converting this to steps per second:
- There are 3600 seconds in an hour.
- So, [tex]\( \frac{3 \text{ steps}}{3600 \text{ seconds}} = 0.00083 \text{ steps per second} \)[/tex].
- This rate is extremely slow and does not represent a quick walking pace.

2. 3 steps per second:
- This means that every second, the person takes 3 steps.
- This is a fairly brisk pace and could represent a quick walking speed.

3. 30 steps per minute:
- Convert this rate to steps per second:
- There are 60 seconds in a minute.
- So, [tex]\( \frac{30 \text{ steps}}{60 \text{ seconds}} = 0.5 \text{ steps per second} \)[/tex].
- This pace is moderate but not particularly fast.

4. 30 steps per second:
- This rate implies that the person takes 30 steps every second.
- This is extremely fast and more representative of a running or sprinting speed, not walking.

After analyzing all the options, the best rate that represents the average rate at which a person can quickly walk is:

30 steps per minute.

Thus, the answer is:
30 steps per minute (Option 3).