Final answer:
To calculate Jesse's average typing speed, the total words typed (600 words) and total time taken (27 minutes) are used. Assuming the mention of 'letters' in the first part was a mistake, Jesse's average typing speed is about 22.22 words per minute.
Step-by-step explanation:
To calculate Jesse's average typing speed, we need to combine the total number of words typed (600 words) with the total amount of time taken (27 minutes). First, we find the speed for each segment of typing:
- First 300 letters in 12 minutes: 300 letters / 12 minutes = 25 letters per minute
- Remaining 300 words in 15 minutes: 300 words / 15 minutes = 20 words per minute
However, since the question has a discrepancy (mentioning both letters and words), we'll proceed under the assumption that Jesse typed 600 words total. The combined typing time is 12 minutes + 15 minutes = 27 minutes.
Therefore, Jesse's average speed is calculated as follows:
- Total words typed: 600 words
- Total time taken: 27 minutes
- Average speed: 600 words / 27 minutes ≈ 22.22 words per minute
Note: Answer assumes 'letters' was a typo and all references to productivity involve 'words'.