The school bought a batch of books, including 120 literature and art books, accounting for 60% of the total. How many books did the school buy in total?
学校买来一批书，其中文艺书有120本，占这批书总量的60%，学校买来这批书共多少本？
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">120 / (3/5)</gadget>
<output>200</output>

<result>200</result>