The distance between the two places is 280 km. Two cars A and B drive from two places at the same time, drive towards each other, and meet each other in 3.5 hours. Car A travels 47.5 kilometers per hour, how many kilometers per hour does Car B travel?
两地间的路程是280千米．甲乙两辆汽车同时从两地开出，相向而行，3.5小时相遇．甲车每小时行47.5千米，乙车每小时行多少千米？
<gadget id="calculator">280 / 3.5</gadget>
<output>80</output>

<gadget id="calculator">80 - 47.5</gadget>
<output>32.5</output>

<result>32.5</result>