1。本を六ページ読んだ。
2。本の六ページ読んだ。
Is sentence 2 the same as sentence 3?
3。本の六ページを読んだ。
1。本を六ページ読んだ。
2。本の六ページ読んだ。
Is sentence 2 the same as sentence 3?
3。本の六ページを読んだ。
I think the 2nd sentence is not grammatical, it lacks the particle を of the 3rd sentence. However, in speech people might use the 2nd one over the 3rd one.
The first sentence has a different meaning than the 2nd/3rd one.
1) I read six pages of (this) book
2/3) I read the sixth page of the book.