Answer:
45%
Step-by-step explanation:
Given
Number of fiction books = 110
Number of non fiction books = 90
Total number of books = 110 + 90 = 200
% of non fiction books
= number of non fiction books divided by the total number of books multiplied by 100%
That’s
90/200 x 100%
0.45 x 100%
45%
45% of her library is nonfiction