Final answer:
To determine the latest time that Paul can start his chores, we would normally sum the time for each chore and subtract it from his father's expected arrival time, 6:30 p.m. This technique was demonstrated in the example with Maria, who calculated her total errand time and added it to her start time to find her arrival time at her friend's house.
Step-by-step explanation:
To find the latest time Paul could begin his chores so he completes them before his father comes home at 6:30 p.m., we first need to know how much time Paul's chores will take in total. Unfortunately, the question doesn't provide the exact duration of Paul's chores. To properly answer, we would sum up the time for each chore, and then subtract that total time from 6:30 p.m. to find the latest start time. Since we don't have the duration of Paul's chores, we cannot determine the latest start time among the options provided (A) 5:30 p.m., (B) 4:30 p.m., (C) 3:30 p.m., (D) 5:00 p.m. However, using the concept of adding and subtracting measures of time as in the example provided, one would typically add up the time required for all the chores and then subtract this from the expected arrival time of his father to determine the latest start time.
In the given example of Maria, it was calculated as follows:
- Add the duration of each activity: 15 minutes at the post office, 1 hour and 25 minutes at the mall, and 20 minutes to drive to her friend's house.
- Simplify the minutes to hours where possible: 1 hour and 60 minutes.
- Recognize that 60 minutes equals 1 hour and add it to the hours: 2 hours in total.
- Add the total duration to the start time (1:00 p.m.): 3:00 p.m. is the arrival time at her friend's house.