The distance between the two places is 360 kilometers. A bus and a truck leave opposite each other at the same time. They meet after 2 hours. The speed ratio of the bus and the truck is 5:4. What is the speed of the truck?
两地相距360千米，客车和货车同时从两地相对开出，2小时后相遇，客车和货车的速度比是5：4，货车的速度是多少？
<gadget id="calculator">360 / 2</gadget>
<output>180</output>

<gadget id="calculator">4 + 5</gadget>
<output>9</output>

<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">180 * (4/9)</gadget>
<output>80</output>

<result>80</result>