Wang Jie has been reading a 216-page storybook for 8 days, 12 pages a day, and the rest 20 pages a day. How many days will it take to finish it?
王婕看一本216页的故事书，已经看了8天，每天看12页，剩下的每天看20页，还需要多少天看完？
<gadget id="calculator">12 * 8</gadget>
<output>96</output>

<gadget id="calculator">216 - 96</gadget>
<output>120</output>

<gadget id="calculator">120 / 20</gadget>
<output>6</output>

<result>6</result>