A bookstore launched a discounted book sale for students, offering a 10% discount for any one-time purchase of books not exceeding 200 yuan. He paid 72 yuan for the first book purchase, and enjoyed a 20% discount for the second time. He checked the price of the book and found that the two times saved a total of 34 yuan. He asked the student how much he actually paid for the second book purchase.
某书店开展学生优惠售书活动，凡一次性购书不超过200元的一律九折优惠，超过200元的，其中200元按九折计算，超过200元的部分按八折优惠，某学生第一次去购书付款72元，第二次去购书享受八折优惠，他查看了买书的定价，发现两次共节省34元，求学生第二次购书实际付了多少元．
<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">72 / (9/10)</gadget>
<output>80</output>

<gadget id="calculator">1 - (9/10)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">80 * (1/10)</gadget>
<output>8</output>

<gadget id="calculator">34 - 8</gadget>
<output>26</output>

<gadget id="calculator">230 - 26</gadget>
<output>204</output>

<result>204</result>