On the map with a scale of 1:2500000, the straight-line distance from point A to point B is 6cm. Because the road has curves, the actual distance of the road is 1.2 times the straight-line distance. There are two buses at the same time. A and B start from two places and drive toward each other. After 1.5 hours, the two cars meet. It is known that car A travels an average of 80 kilometers per hour. How many kilometers does B travel on average per hour?
在比例尺是1：2500000地图上，量得A地到B地的图上直线距离是6cm，由于公路有弯道，实际上公路路程是直线距离的1.2倍，现有两辆车客车同时分别从A、B两地出发，相向而行，经过1.5小时两车相遇，已知甲车平均每小时行驶80千米，则乙车平均每小时行驶多少千米？
<gadget id="calculator">1 / 2_500_000</gadget>
<output>1/2_500_000 = around 0</output>

<gadget id="calculator">1_000 * 100</gadget>
<output>100_000</output>

<gadget id="calculator">6 / (1/2_500_000) / 100_000</gadget>
<output>150</output>

<gadget id="calculator">1.2 / 1.5</gadget>
<output>0.8</output>

<gadget id="calculator">150 * 0.8</gadget>
<output>120</output>

<gadget id="calculator">120 - 80</gadget>
<output>40</output>

<result>40</result>