Sari has to read a book for English class by the end of the week. She wants to read at least 200 pages in the first 5 days of the week. On average, how many pages should Sari read per day to meet her goal?
To meet her goal of reading at least 200 pages in the first 5 days of the week, Sari needs to read 200 pages / 5 days = <<200/5=40>>40 pages per day. Answer: \boxed{40}.
To find out how many pages Sari should read on average per day, we can divide the total number of pages she wants to read (200 pages) by the number of days she has (5 days).
Average pages per day = Total pages / Number of days
= 200 pages / 5 days
= 40 pages
Therefore, Sari should read an average of 40 pages per day to meet her goal.