Final answer:
Ben started riding his bike at 10:05 A.M. and stopped 23 minutes later, which means he stopped at 10:28 A.M.
Step-by-step explanation:
The student is asking a question related to basic arithmetic operations with time. To find out at what time Ben stopped riding his bike, we need to add 23 minutes to the time he started, which was 10:05 A.M. Adding the 23 minutes to 10:05 A.M. gives us 10:28 A.M. Therefore, Ben stopped riding his bike at 10:28 A.M. This is a straightforward calculation involving the addition of minutes to a given hour and minute timestamp.