A person plows 20 mu of land every day on sunny days, but only 12 mu on rainy days. He plows 112 mu every day for several days, with an average of 14 mu per day. How many days are there rainy days?
某人耕地，晴天每天耕20亩，雨天每天只耕12亩，他一连几天耕了112亩，平均每天耕14亩，那么这几天中雨天有多少天．
<gadget id="calculator">112 / 14</gadget>
<output>8</output>

<gadget id="calculator">8 * 20</gadget>
<output>160</output>

<gadget id="calculator">160 - 112</gadget>
<output>48</output>

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

<gadget id="calculator">48 / 8</gadget>
<output>6</output>

<result>6</result>