Foundation June 2017 Paper 3 Q9
9 Davos is a cleaner.
The table shows information about the time it will take him to clean each of four rooms in a house.
| Room | Time |
|---|---|
| Kitchen | 2 hours |
| Sitting room | 1 hour 40 minutes |
| Bedroom | \(1\frac{1}{2}\) hours |
| Bathroom | 45 minutes |
Davos wants to clean all four rooms in one day.
He will have breaks for a total time of 75 minutes.
Davos is going to start cleaning at 9 am.
Will he finish cleaning by 4 pm?
You must show all your working. (3)
| Answer | Mark | Notes |
|---|---|---|
| No (supported) | P1 | for finding a time difference e.g. length of day (=7 h or 420 min) or adding at least two of the five times on to 9 am or adding all the room times given (= 5 h 55 min or 355 min) or adding all five times given (=7 h 10 min or 430 min) |
| P1 | for a complete process to inform final decision eg finds length of day (= 7 h) and total of all five times (=7 h 10 min) or starts at 9am and adds on all five times to find finishing time (= 4.10 pm) | |
| C1 | NO supported by correct values eg 4.10 pm or 7 h and 7 h 10 min or 420 min and 430 min |