Each shelf of a bookcase contained 11 books. If the librarian took out 32 books and rearranged the remaining books so that all shelves but the last one contained 7 books and that last shelf contained 3 books, how many shelves does the bookcase have?	Choose the correct choice from the following choices.
A) 5 B) 6 C) 7 D) 8 E) 9
Let x be the number of shelves.   11x - 32 = 7(x-1) + 3   4x = 28   x = 7   The answer is 7.
<result>C</result>
Each shelf of a bookcase contained 11 books. If the librarian took out 32 books and rearranged the remaining books so that all shelves but the last one contained 7 books and that last shelf contained 3 books, how many shelves does the bookcase have?