10 people attended class on Monday, 15 on Tuesday, and 10 on each day from Wednesday through Friday. What was the average number of people who attended class each day? Let's answer step by step:
A total of 10 + 15 + 10 + 10 + 10 = 55 people attended class across the 5 days. An average of 55 people / 5 days = 11 people per day attended class. The answer: 11.