A worker planted 20 trees a day in sunny days and 12 trees in rainy days. He planted 112 trees in consecutive days, with an average of 14 trees a day. Q: How many rainy days have there been in these days?
一个工人植树，晴天每天植树20棵，雨天每天植树12棵，他接连几天共植树112棵，平均每天植树14棵．问：这几天中共有几个雨天？
<gadget id="calculator">112 / 14</gadget>
<output>8</output>

<gadget id="calculator">112 - 96</gadget>
<output>16</output>

<gadget id="calculator">20 - 12</gadget>
<output>8</output>

<gadget id="calculator">16 / 8</gadget>
<output>2</output>

<gadget id="calculator">8 - 2</gadget>
<output>6</output>

<result>6</result>