Two cars, A and B, drive from a gas station in opposite directions at the same time. After driving for 3 hours, the distance between the two cars is 294.6 km. Car A travels 46.8 km per hour. How many kilometers does car B travel per hour?
甲、乙两辆汽车同时从一个加油站向相反方向开出，行驶了3小时，两车相距294.6km，甲车每小时行46.8km，乙车每小时行多少千米？
<gadget id="calculator">294.6 / 3</gadget>
<output>98.2</output>

<gadget id="calculator">98.2 - 46.8</gadget>
<output>51.4</output>

<result>51.4</result>