Respuesta :

Answer:

7hours and 16 minutes

Step-by-step explanation:

8:15-9:15 is one hour. 9:15-10:15 is two hours. 10:15-11:15 is three hours.11:15-12:15 is four hours. 12:15-1:15 is five hours. 1:15-2:15 is six hours. 2:15-3:15 is seven hours. 3:15-3:31 is 16 minutes.

The answer is 7 hours 16 minutes