The school library bought 240 science and technology books, and the number of literature and art books bought was 12 more than three times that of science and technology books. How many literature and art books did the school buy?
学校图书馆买来240本科技书，买来的文艺书的本数比科技书的3倍还多12本．学校买来多少本文艺书？
<gadget id="calculator">240 * 3</gadget>
<output>720</output>

<gadget id="calculator">720 + 12</gadget>
<output>732</output>

<result>732</result>