There are 3 shelves.each has 28 books.there is also a stack of more books.there are a total of 85 books how many are in stack?

Answer 1

First, lets see how many books we can keep in the shelves.

Each shelf = 28 books
Number of shelves - 3
Total books = 28 x 3 = 84

We have a total of 85 books, but 84 are in the shelves.

Thus, 85 - 84 = 1 book is in the stack.