The taxi fare standard in our city is: the starting price is 5 yuan (that is, 5 yuan is required if the driving distance does not exceed 3 kilometers), and after more than 3 meters, an additional 1.2 yuan is charged for each additional kilometer (less than 1 kilometer is charged 1. Kilometer calculation). When a person pays 17 yuan when he gets off in this kind of taxi, how many kilometers can he travel by taxi at most (excluding the waiting time)?
我市的出租车收费标准是：起步价5元(即行驶距离不超过3千米都需付5元)，超过3米以后，每增加1千米加收1.2元(不足1千米按1千米计算)．某人乘这种出租车下车时交付了17元车费，那么他搭乘出租车最多走了多少千米(不计等候时间)？
<gadget id="calculator">17 - 5</gadget>
<output>12</output>

<gadget id="calculator">12 / 1.2</gadget>
<output>10</output>

<gadget id="calculator">3 + 10</gadget>
<output>13</output>

<result>13</result>