It is a simple enough question, but remember the book is technically very poorly written:-
Major characters are suddenly introduced.
Huge chunks of the story doesn't do anything.
The beginning is far too long, compared to the very short ending.
There is the epilogue (the scouring of the Shire) which is longer than many novels.
The way the various storylines are ignored for hundreds of pages
and so on.
In short, if you, as a writer, were to present this book to a publisher today it would not be read, let alone published!
Major characters are suddenly introduced.
Huge chunks of the story doesn't do anything.
The beginning is far too long, compared to the very short ending.
There is the epilogue (the scouring of the Shire) which is longer than many novels.
The way the various storylines are ignored for hundreds of pages
and so on.
In short, if you, as a writer, were to present this book to a publisher today it would not be read, let alone published!