A court reporter operates an electronic typewriter at 60 words per minute and a word processor at 70 words per minute. When using a typewriter, the reporter makes errors in 2% of the words, and when using a word processor, the reporter makes errors in 1%. What is the difference in number of errors made per hour on the two machines?
Typewriter = 60 * 60 * .02 = errors
Word Processor = 70 * 60 * .01 = errors
Subtract one from the other.
Well, it sounds like the court reporter is quite the speedy typist! Now, let's crunch some numbers and find out the difference in errors made per hour.
Using a typewriter, the court reporter types at 60 words per minute, which is 60 words every 60 seconds. So, in an hour, they would type 60 words x 60 minutes = 3600 words.
With an error rate of 2%, we can calculate the number of errors made on the typewriter as 3600 x (2/100) = 72 errors per hour.
Now, let's move on to the word processor. The court reporter types at a faster rate of 70 words per minute, which is 70 words every 60 seconds. Therefore, in an hour, they would type 70 words x 60 minutes = 4200 words.
With an error rate of 1%, we can calculate the number of errors made on the word processor as 4200 x (1/100) = 42 errors per hour.
To find the difference in the number of errors made per hour, we subtract the number of errors made on the word processor (42) from the number of errors made on the typewriter (72): 72 - 42 = 30.
So, the difference in the number of errors made per hour on the two machines is 30 errors. Just remember, laughter is the best error-correcting tool!
To find the difference in the number of errors made per hour on the two machines, we need to calculate the number of errors made in each scenario.
Let's start with the typewriter:
The reporter operates the typewriter at 60 words per minute, which means they type 60 * 60 = 3600 words per hour.
The error rate on the typewriter is 2%. Therefore, the reporter makes 2/100 * 3600 = 72 errors per hour.
Now let's consider the word processor:
The reporter operates the word processor at 70 words per minute, which means they type 70 * 60 = 4200 words per hour.
The error rate on the word processor is 1%. Therefore, the reporter makes 1/100 * 4200 = 42 errors per hour.
To find the difference in the number of errors, we subtract the number of errors made on the word processor from the number of errors made on the typewriter:
72 - 42 = 30.
Therefore, the difference in the number of errors made per hour on the two machines is 30 errors.
To find the difference in the number of errors made per hour on the two machines, we need to calculate the number of errors made by the court reporter on each machine.
Let's start with the typewriter:
The court reporter operates it at 60 words per minute, which is equivalent to 60 * 60 = 3600 words per hour.
The reporter makes errors in 2% of the words, so the number of errors made on the typewriter per hour will be 2% of 3600 words:
2/100 * 3600 = 72 errors per hour
Now let's calculate the number of errors made on the word processor:
The court reporter operates it at 70 words per minute, which is equivalent to 70 * 60 = 4200 words per hour.
The reporter makes errors in 1% of the words, so the number of errors made on the word processor per hour will be 1% of 4200 words:
1/100 * 4200 = 42 errors per hour
Finally, let's find the difference in the number of errors made per hour on the two machines:
Number of errors on the typewriter per hour - Number of errors on the word processor per hour
72 errors per hour - 42 errors per hour = 30 errors per hour
Therefore, the difference in the number of errors made per hour on the two machines is 30 errors.