The distance between A and B is 780 kilometers. Two trains A and B depart from A and B respectively and meet each other in 6.5 hours. It is known that train A travels 62.8 kilometers per hour, and how many kilometers does train B travel per hour? ? (Solution of column equation)
A、B两地相距780千米，甲、乙两列火车分别从A、B两地相对开出，6.5小时相遇，已知甲车每小时行62.8千米，乙车每小时行多少千米？(列方程解)
<gadget id="calculator">62.8 * 6.5</gadget>
<output>408.2</output>

<gadget id="calculator">780 - 408.2</gadget>
<output>371.8</output>

<gadget id="calculator">371.8 / 6.5</gadget>
<output>57.2</output>

<result>57.2</result>