Respuesta :

The person spent 2 hours and 45 minutes watching TV. I know this because from 1:20 to 3:20 is two hours and then you do 60 - 20 which gives you 40 and you add that to 5.
The person watches 2 hours and 45 minutes of tv  

1:20
2:20--------1 Hour 
3:20--------2 Hours
4:05-------- 45 Minutes