Xiaopang wants to read a book. He plans to read 15 pages a day and finish it in 18 days. He actually reads 27 pages a day. How many days can he finish it?
小胖要读一本书，计划每天读15页，18天可以读完，实际每天读27页，实际几天可以读完？
<gadget id="calculator">15 * 18</gadget>
<output>270</output>

<gadget id="calculator">270 / 27</gadget>
<output>10</output>

<result>10</result>