The mother squirrel picks pine nuts. She picks 20 nuts a day in sunny days and 12 nuts in rainy days. She picks 112 nuts in a row, with an average of 14 nuts a day. How many of these days are rainy days?
松鼠妈妈采松子，晴天每天采20个，雨天每天可采12个，它一连采了112个，平均每天采14个，这几天中有多少天是雨天．
<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>