On a map with a scale of 1:3,000,000, the distance between A and B is 8cm. A bus and a truck drive from the two places at the same time. After 3 hours of meeting, the bus travels 44km per hour. How much does the truck travel per hour? km．
在比例尺1：3000000的地图上，甲、乙两地的距离是8cm，一辆客车和一辆货车同时从两地相对开出，经过3小时相遇，客车每小时行44km，货车每小时行多少km．
<gadget id="calculator">30 * 8</gadget>
<output>240</output>

<gadget id="calculator">240 / 3</gadget>
<output>80</output>

<gadget id="calculator">80 - 44</gadget>
<output>36</output>

<result>36</result>