The mother squirrel picked 20 pine nuts a day in sunny days and 12 in rainy days. She picked 112 pine nuts for several days in a row, with an average of 14 pine nuts a day. So how many days are there rainy days?
松鼠妈妈采松子，晴天每天可以采20个，雨天每天可以采12个，它一连几天采了112个松子，平均每天采14个．那么这几天中雨天有几天？
<gadget id="calculator">112 / 14</gadget>
<output>8</output>

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