First find how many text messages he sent on Tuesday: 220 messages / 2 = <<220/2=110>>110 messages
Then find how many text messages he sent Wednesday-Friday: 50 messages/day * 3 days = <<50*3=150>>150 messages
Then add up all the messages he sent to find the total: 110 messages + 150 messages + 220 messages = <<110+150+220=480>>480 messages
Then divide that number by the number of days to find the average number of messages he sent per day: 480 messages / 5 days = <<480/5=96>>96 messages/day
#### 96