Cars A and B start from two places 720 kilometers apart at the same time, drive towards each other, and meet each other 4 hours later. Car A travels 93.5 kilometers per hour, how many kilometers per hour does Car B travel?
甲、乙两车同时从相距720千米的两地出发，相向而行，4小时后相遇．甲车每小时行93.5千米，乙车每小时行多少千米？
<gadget id="calculator">720 / 4</gadget>
<output>180</output>

<gadget id="calculator">180 - 93.5</gadget>
<output>86.5</output>

<result>86.5</result>