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60 minutes per hour x 2 hours = 180 minutes+ 15 minutes= 195 minutes
It is: 45/60 = 3/4 of an hour
Each minute is 1/60 hour, therefore, 25 minutes is 25/60 hour. 25/60 hour simplifies to 5/12 hour.
There are: 8*60 = 480 minutes
17 hours