Cars A and B drive from two places 630 kilometers apart at the same time, and meet each other after 5 hours. Car A travels 68 kilometers per hour. How many kilometers per hour does Car B travel?
甲乙两车同时从相距630千米的两地相对开出，5小时后相遇，甲车每小时行68千米，乙车每小时行多少千米？
<gadget id="calculator">630 / 5</gadget>
<output>126</output>

<gadget id="calculator">126 - 68</gadget>
<output>58</output>

<result>58</result>