The two cars drove oppositely from two places 194.4 kilometers apart at the same time, and met after 2.4 hours. Car A travels 38 kilometers per hour, how many kilometers per hour does Car B travel?
两辆汽车同时从相距194.4千米的两地相对开出，经过2.4小时相遇．甲车每小时行38千米，乙车每小时行多少千米？
<gadget id="calculator">194.4 / 2.4</gadget>
<output>81</output>

<gadget id="calculator">81 - 38</gadget>
<output>43</output>

<result>43</result>