The pine tree mother picks pine nuts. She can pick 20 nuts a day in sunny days and 12 nuts in rainy days. She picks 112 nuts in total, 14 nuts a day on average. How many days are there sunny days?
松树妈妈采松子，晴天每天可采20个，雨天每天采12个，它一共采了112个，平均每天采14个．这几天中晴天有几天？
<gadget id="calculator">112 / 14</gadget>
<output>8</output>

<gadget id="calculator">12 * 8</gadget>
<output>96</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>

<result>2</result>