The taxi fare standard in a certain city is as follows: 8 yuan for 3 kilometers and less than 3 kilometers; 1.20 yuan for every additional kilometer above 3 kilometers, and 1 yuan for fuel fee for each payment. Li Jun paid a total of 19.8 yuan from his home to the Children's Palace by car. How many kilometers is the distance between his home and the Children's Palace?
某市出租车收费标准如下：3千米及3千米以下8元；3千米以上每增加1千米收费1.20元，另外每次付费需另加1元燃料费．李军乘车从家里出发到少年宫共付了19.8元，他家和少年宫相距多少千米？
<gadget id="calculator">19.8 - 1 - 8</gadget>
<output>10.8</output>

<gadget id="calculator">10.8 / 1.2</gadget>
<output>9</output>

<gadget id="calculator">9 + 3</gadget>
<output>12</output>

<result>12</result>