A truck can transport ore 20 times a day on sunny days and 12 times on rainy days. It has transported 112 times in a few days, with an average of 14 times a day. How many days have rain in these days?
一辆卡车运矿石，晴天每天可运20次，雨天每天可运12次，它一连几天运了112次，平均每天运了14次，这几天中多少天有雨．
<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>