A book has 192 pages. Xiaoyu has been reading it for 6 days, 18 pages a day, and the remaining pages are 10 more pages a day than before. How many days will it take to finish the book?
一本书有192页，小玉已读了6天，每天读18页，剩下的每天比原来多读10页，读完全书还要多少天．
<gadget id="calculator">6 * 18</gadget>
<output>108</output>

<gadget id="calculator">192 - 108</gadget>
<output>84</output>

<gadget id="calculator">18 + 10</gadget>
<output>28</output>

<gadget id="calculator">84 / 28</gadget>
<output>3</output>

<result>3</result>