Answer: 15 hours and 10 minutes
Hope this helps!
From 11:15 am to 11:15 pm, it is 12 hours.
From 11:15 pm to 1:15 am it is 2 hours
From 1:15 am to 1:55 am it is 40 minutes.
12 hours + 2 hours + 40 minutes = 14 hours and 40 minutes =
= 14 hours and 40/60 hours = 14 2/3 hours
Answer: 14 2/3 hours
