Adah practiced the cello for a total of 7.5 hours last week. He practiced for 86 minutes on each of 2 days. How many minutes in total did he practice on the other days?
7.5 hours = <<7.5*60=450>>450 minutes
Two days = 2 * 86 = 172 minutes
450 - 172 = <<450-172=278>>278 minutes
Adah practiced a total of 278 minutes on the other days.
#### 278