conversations.from: human
conversations.value: Can you explain how to solve this math problem: There are 6 periods in the day for a normal student but John has to take 2 extra classes.  Each class is 40 minutes long.  He goes to class for 5 days a week.  He then spends 1/16 of his weekly minutes each on Saturday and Sunday as extra learning time.  How many hours a week does he spend learning?
conversations.from: assistant
conversations.value: He takes 6+2=8 classes a day
  That means he spends 40*8=320 minutes per day in class
  So he spends 320*5=1600 minutes a week
  That means he spends 1600/16=100 minutes each on Saturday and Sunday
  So he spends 1600+100+100=1800 minutes per week
  So he spends 1800/60=30 hours per week