Question

A class is practicing their typing skills. They want to find out who is the most efficient typist.

A 3-column table with 4 rows. Column 1 is labeled Name with entries James, Shanya, Tristan, Ebony. Column 2 is labeled number of words with entries 15, 120, 30, 100. Column 3 is labeled time (seconds) with entries 30, 40, 20, 50.

Find the unit rate for each person’s typing test in words per second.

0.5 words/second is the unit rate for James.

3 words/second is the unit rate for Shanya.


words/second is the unit rate for Tristan.

words/second is the unit rate for Ebony.
So,
is the fastest typist.

Answer 1

To find the unit rate in words per second for each person, we can divide the number of words they typed by the time it took them in seconds.

1. **James**:
- Words: 15
- Time: 30 seconds
- Unit rate: \( \frac{15 \text{ words}}{30 \text{ seconds}} = 0.5 \) words/second

2. **Shanya**:
- Words: 120
- Time: 40 seconds
- Unit rate: \( \frac{120 \text{ words}}{40 \text{ seconds}} = 3 \) words/second

3. **Tristan**:
- Words: 30
- Time: 20 seconds
- Unit rate: \( \frac{30 \text{ words}}{20 \text{ seconds}} = 1.5 \) words/second

4. **Ebony**:
- Words: 100
- Time: 50 seconds
- Unit rate: \( \frac{100 \text{ words}}{50 \text{ seconds}} = 2 \) words/second

Now we can summarize the unit rates:

- James: 0.5 words/second
- Shanya: 3 words/second
- Tristan: 1.5 words/second
- Ebony: 2 words/second

The fastest typist is **Shanya** with a rate of **3 words/second**.