Final answer:
To find how many more words the fastest typist could type in 30 minutes compared to the slowest typist, calculate the difference in their typing speeds and multiply by 30. Example: if the typing speeds differ by 50 wpm, the fastest typist will type 1500 more words in 30 minutes.
Step-by-step explanation:
To calculate how many more words the fastest typist could type in 30 minutes than the slowest typist, you would need to know the words per minute (wpm) rate of both the fastest and the slowest typists. Assuming the fastest typist types at a rate of F wpm and the slowest at a rate of S wpm, you would use the place value strategy to first determine the difference in their typing speeds: Difference in speed = F - S.
Then you would multiply this difference by the number of minutes to find the total word count difference over 30 minutes: Total word difference = (F - S) x 30 minutes.
For example, if the fastest typist types 100 wpm and the slowest types 50 wpm, their difference in speed is 50 wpm (100 - 50). In 30 minutes, the fastest typist would type (50 wpm x 30 minutes) = 1500 more words than the slowest typist.