The taxi fare standard in Shanghai is: 3 kilometers and below, a total of 11 yuan will be charged, and for more than 3 kilometers, the fee will be 2.4 yuan for each additional kilometer. Xiaoxiao takes a taxi from the accommodation to the department store, and the total cost is 18.2 yuan. How many kilometers is the distance from the accommodation to the department store?
上海市出租车的收费标准为：3千米及3千米以下，共收费11元，3千米以上，每增加1千米，收费2.4元．笑笑乘出租车从住宿地到百货大楼，共付费18.2元，住宿地到百货大楼相距多少千米？
<gadget id="calculator">18.2 - 11</gadget>
<output>7.2</output>

<gadget id="calculator">7.2 / 2.4</gadget>
<output>3</output>

<gadget id="calculator">3 + 3</gadget>
<output>6</output>

<result>6</result>