The distance between A and B is 567 kilometers. A car drives from place A to place B. After driving for 12 hours, it is still 15 kilometers away from place B. What is the average km/h of this car?
甲乙两地相距567千米．一辆汽车从甲地开往乙地，行了12小时后，离乙地还有15千米．这辆汽车平均千米/小时？
<gadget id="calculator">567 - 15</gadget>
<output>552</output>

<gadget id="calculator">552 / 12</gadget>
<output>46</output>

<result>46</result>