Workers in a binding workshop want to pack a batch of books and send them to the post office. Each pack contains the same number of books. For the first time, they brought seven-twelfths of the books, and ended up packing 14 packages with 35 more books; for the second time, they took all the remaining books, together with the extra change from the first time, Just hit another 11 packs. So how many books are there in total?
某装订车间的工人要将一批书打包后送往邮局，每包中所装书的数目一样多．第一次，他们领来这批书的十二分之七，结果打了14个包还多35本；第二次他们把剩下的书全部取来，连同第一次多的零头一起，刚好又打了11包．那么这批书共有多少本．
<gadget id="calculator">7 / 12</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">14 + 11</gadget>
<output>25</output>

<gadget id="calculator">14 / 25</gadget>
<output>14/25 = around 0.56</output>

<gadget id="calculator">(7/12) - (14/25)</gadget>
<output>7/300 = around 0.023333</output>

<gadget id="calculator">35 / (7/300)</gadget>
<output>1_500</output>

<result>1_500</result>