Respuesta :

4pm. Explanation: 9+15=14. In military time, 14:00 is equivalent to 2pm. Then the nap lasted two hours. 2 hours after 2pm is 4pm. You could also think of it this way: 9+7 (the 5 hours of work + 2 hour nap) =16, and 16:00 is equivalent to 4pm.