The distance between the two places is 784 kilometers. A passenger car and a truck depart from two places opposite each other at the same time, and the two vehicles meet after 5 hours. It is known that the passenger car travels 80 kilometers per hour, how many kilometers per hour does the truck travel?
两地相距784千米．一辆客车和一辆货车同时从两地相对开出，5小时后两车相遇．已知客车每小时行80千米，货车每小时行多少千米？
<gadget id="calculator">80 * 5</gadget>
<output>400</output>

<gadget id="calculator">784 - 400</gadget>
<output>384</output>

<gadget id="calculator">384 / 5</gadget>
<output>384/5 = around 76.8</output>

<result>384/5 = around 76.8</result>