On a map with a scale of (1/6000000), it is measured that the distance between A and B is 7.5 cm. There are two passenger and freight vehicles that leave from A and B at the same time and meet each other after 3 hours. The speed ratio of the two vehicles is known. It is 3:2, how many kilometers does the truck travel per hour?
在比例尺是(1/6000000)的地图上量得甲乙两地相距7.5厘米，现有客、货两车分别从甲、乙两地同时相对开出，3小时后相遇，已知两车速度比是3：2，货车每小时行多少千米？
<gadget id="calculator">1 / 6_000_000</gadget>
<output>1/6_000_000 = around 0</output>

<gadget id="calculator">7.5 / (1/6_000_000) / 100_000 / 3</gadget>
<output>150</output>

<gadget id="calculator">3 + 2</gadget>
<output>5</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">150 * (2/5)</gadget>
<output>60</output>

<result>60</result>