Cars A and B respectively depart from two places 600 kilometers apart at the same time and drive towards each other. They meet each other in 5 hours. When they meet, car A travels 350 kilometers. How many kilometers does car B travel per hour? (equation)
甲乙两车分别从相距600千米的两地同时出发相对开出，5小时相遇，相遇时甲车行了350千米，乙车每小时行多少千米？(方程)
<gadget id="calculator">600 - 350</gadget>
<output>250</output>

<gadget id="calculator">250 / 5</gadget>
<output>50</output>

<result>50</result>