The school library bought back 130 science and technology books and 240 literature and art books. The number of story books bought back is 6 times the number of science and art books combined. How many story books are bought back?
学校图书室买回科技书130本，文艺书240本．买回的故事书是科技书和文艺书本数的和的6倍，买回的故事书有多少本？
<gadget id="calculator">130 + 240</gadget>
<output>370</output>

<gadget id="calculator">370 * 6</gadget>
<output>2_220</output>

<result>2_220</result>