Homework SourseBryan is Professor Russells graduate assistant He would like
Bryan is Professor Russell’s graduate assistant. He would like to leave for Spring Break tomorrow, but first he has to grade the midterm exams from four classes. These classes are new for Bryan, so he estimates his grading efficiency to be 80%. Professor Russell has estimated the time required to create the key and the time to grade each paper as shown below. Bryan anticipates that he’ll need five hours of sleep, an hour to pack, an hour to get to the airport, an hour to post the grades, and three twenty minute breaks during the day for meals. What is Bryan\'s workload in hours?
12.45
What is Bryan’s effective capacity in the problem above?
12 hours
What is Bryan’s load percent?
| Class | Create key (mins) | Grade paper (mins) | # papers |
| 1 | 10 | 2 | 35 |
| 2 | 15 | 5 | 50 |
| 3 | 5 | 1 | 60 |
| 4 | 20 | 10 | 25 |
Solution
1) Bryan\'s workload = time to create key + time to grade exam papers
= (10+15+5+20)+(2*35+5*50+1*60+10*25)
= 680 minutes
= 680/60 hours
= 11.33 hours
2) Bryan\'s effective capacity = grading efficiency * time available
= 80% * (24 hours - 5 hours to sleep - 1 hour to pack - 1 hour to get to airport - 1 hour to post grades - 20minutes*3 breaks for meals)
= 80% * (24 - 9)
= 12 hours
3) Bryan\'s load percent = workload / effective capacity
= 11.33/12
= 94%
