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The problem asks how many more words the fastest typist can type in 30 minutes than the slowest typist. We are given the typing rates of three typists: 

- Lavon types 50 words per minute.
- Jerome types 40 words per minute.
- Charlie types 60 words per minute.

### Step-by-Step Solution:

1. **Fastest Typist:**  
   The fastest typist is **Charlie**, who types **60 words per minute**.

2. **Slowest Typist:**  
   The slowest typist is **Jerome**, who types **40 words per minute**.

3. **Words Typed in 30 Minutes:**  
   - **Charlie:** \( 60 \, \text{words/min} \times 30 \, \text{min} = 1800 \, \text{words} \)
   - **Jerome:** \( 40 \, \text{words/min} \times 30 \, \text{min} = 1200 \, \text{words} \)

4. **Difference in Words Typed:**  
   The difference in the number of words typed by Charlie and Jerome in 30 minutes is:
   \[
   1800 - 1200 = 600 \, \text{words}
   \]

Thus, **Charlie can type 600 more words in 30 minutes than Jerome**.

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### Related Questions:
1. How many words does Lavon type in 30 minutes?
2. If Jerome typed for 45 minutes, how many words would he type?
3. How long would it take Charlie to type 3000 words?
4. What is the average number of words typed per minute by all three typists?
5. If Lavon improved his typing speed by 10 words per minute, how many words would he type in 30 minutes?

**Tip:** Always check for the slowest and fastest variables when dealing with rate-based problems!

Ms. Marks records the number of words each typist can type in 1 minute. How many more words could the fastest typist type in 30 minutes than the slowest typist?

Learn how to compare the typing speeds of three typists to find out how many more words the fastest typist can type in 30 minutes than the slowest typist. This problem involves multiplication of rates and subtraction. Suitable for Grades 4-6.

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