Two cars A and B drive opposite each other from two places 280 meters apart. After 3 hours, the distance between the two cars is still 10 kilometers. Car A travels 35 kilometers per hour, how many kilometers per hour does Car B travel?
甲、乙两辆汽车从相距280米的两地相对开出，3小时后两车还相距10千米．甲车每小时行35千米，乙车每小时行多少千米？
<gadget id="calculator">280 - 10</gadget>
<output>270</output>

<gadget id="calculator">270 / 3</gadget>
<output>90</output>

<gadget id="calculator">90 - 35</gadget>
<output>55</output>

<result>55</result>