The taxi billing method in a certain city is 5 yuan within 3 kilometers (including 3 kilometers), and 1.50 yuan for every additional 1 kilometer thereafter. Ask Uncle Wang to go to the gas company to do business from home, and pay a total of 11 yuan by taxi. How many kilometers is the distance between his home and the gas company?
某市出租车计费办法是3千米以内(含3千米)收费5元，以后每增加1千米加收1.50元．问王叔叔从家出发到燃气公司办事，乘出租车共付了车费11元，他家离燃气公司有多少千米的路程？
<gadget id="calculator">11 - 5</gadget>
<output>6</output>

<gadget id="calculator">6 / 1.5</gadget>
<output>4</output>

<gadget id="calculator">3 + 4</gadget>
<output>7</output>

<result>7</result>