Final answer:
Tom will take 6 hours and 45 minutes to file 75% of his 12 reports, as each report takes 45 minutes to file.
Step-by-step explanation:
The student's question is asking how long it will take Tom to file 75% of his reports if each report takes an average of 45 minutes to file and he has 12 reports in total.
To solve this, we first calculate 75% of the total reports which is 0.75 x 12 = 9 reports. Then, we multiply the number of reports Tom needs to file by the amount of time each report takes: 9 reports x 45 minutes/report = 405 minutes. Finally, we convert the total minutes into hours and minutes: 405 minutes = 6 hours and 45 minutes, as there are 60 minutes in an hour.
Tom has 12 reports to file and each report takes an average of 45 minutes to file. To find out how long it will take him to file 75% of the reports, we can calculate 75% of 12: 75% of 12 = (75/100) * 12 = 9.
So, Tom will file 9 reports. To find out how long it will take him to file these 9 reports, we can multiply the average time it takes to file one report by 9: 45 minutes * 9 = 405 minutes.
Therefore, it will take Tom 405 minutes to file 75% of the reports, which is the same as 6 hours, 45 minutes.