The taxi fare in a certain place is 8 yuan within 3km, and 1.6 yuan for every kilometer beyond 3km. Mr. Sun took a taxi to attend a class at a school and paid 27.2 yuan. How far is this school from Mr. Sun’s home? Far?
某地出租车的收费标准是3km以内收费8元，超过3km每千米加收1.6元，孙老师乘出租车去一所学校听课，付出车费27.2元，这所学校离孙老师家有多远？
<gadget id="calculator">27.2 - 8</gadget>
<output>19.2</output>

<gadget id="calculator">19.2 / 1.6</gadget>
<output>12</output>

<gadget id="calculator">12 + 3</gadget>
<output>15</output>

<result>15</result>