The distance between A and B is 30.5 kilometers. Xiaoling starts from A by bicycle and travels 12 kilometers per hour. After 1.5 hours, how far is it from B?
甲、乙两地相距30.5千米，小玲骑自行车从甲地出发，每小时行12千米，行了1.5小时后，距离乙地还有多远？
<gadget id="calculator">12 * 1.5</gadget>
<output>18</output>

<gadget id="calculator">30.5 - 18</gadget>
<output>12.5</output>

<result>12.5</result>