Sophia has not even completed 1 book. She has managed to complete 83% of the book.
Step-by-step explanation:
Given:
Time taken to read one book = 1/5
Total weeks for which sophia read = 1/6
Number of books, z = ?
Total weeks = z X time taken to read one book

Therefore, sophia has not even completed 1 book. She has managed to complete 83% of the book.