Let's break this problem down step by step:
- Find the total number of books: The library originally has 2,780 books. They bought 975 more books. To find the total number of books, we add these two numbers together:
- 2,780 + 975 = 3,755 books
- Even Distribution Across Shelves: Now, we have a total of 3,755 books that need to be distributed evenly onto 5 shelves. To find out how many books go on each shelf, we divide the total number of books by the number of shelves:
- 3,755 ÷ 5 = 751 books per shelf
- Finding Books on 3 Shelves: We want to know how many books there are on 3 shelves. To do this, we multiply the number of books per shelf by the number of shelves:
- 751 books per shelf × 3 shelves = 2,253 books
So, there are 2,253 books on 3 shelves.