Joe found a new series to watch with a final season that will premiere in 10 days. The series has 4 full seasons already aired; each season has 15 episodes. To catch up with the season premiere he has to watch all episodes. How many episodes per day does Joe have to watch?
The total number of episodes is 4 seasons x 15 episodes/season = <<4*15=60>>60 episodes
Joe has to watch per day 60 episodes ÷ 10 days= <<60/10=6>>6 episodes/day
#### 6