Final answer:
To find the time Vincent finished his chores, add 1 hour and 5 minutes to the start time of 11:20 A.M., which results in a finish time of 12:25 P.M.
Step-by-step explanation:
The question asks us to calculate the time Vincent finished his chores after starting at 11:20 A.M. and spending 1 hour and 5 minutes on them. To solve this, we add the duration of his chores to the starting time.
Starting at 11:20 A.M., if Vincent spends 1 hour doing his chores, it brings us to 12:20 P.M. Adding the remaining 5 minutes to that, we reach 12:25 P.M. So, Vincent completed his chores at 12:25 P.M.