Question

the following is a list of books I read this summer what percent of my books were nonfiction? nonfiction =12 fiction=13

Answer 1

so you read 12 + 13 = 25 books in total, and 12 nonfiction ones.

if we take 25 to be the 100%, what is 12 off of it in percentage?

$\bf \begin{array}{ccll}amount&\%\\\cline{1-2}25&100\\12&x\end{array}\implies \cfrac{25}{12}=\cfrac{100}{x}\implies x=\cfrac{12\cdot 100}{25}\implies x=48$