The distance between A and B is 700 km. A passenger car and a freight train leave from A and B at the same time. The passenger car travels 80 km per hour. After 5 hours, the two cars meet. How many miles does the truck travel per hour? (solution with equation)
甲、乙两地相距700千米、一列客车和一列货车同时从甲、乙两地相对开出，客车每小时行使80千米，经过5小时两车相遇．货车每小时行多少千米？(用方程解答)
<gadget id="calculator">80 * 5</gadget>
<output>400</output>

<gadget id="calculator">700 - 400</gadget>
<output>300</output>

<gadget id="calculator">300 / 5</gadget>
<output>60</output>

<result>60</result>