Two cars A and B drive from two cities 800 kilometers apart and meet each other in 8 hours. It is known that car A travels 45 kilometers per hour, how many kilometers per hour does car B travel?
甲、乙两辆汽车分别从相距800千米的两城相向开出，8小时相遇，已知甲车每小时行驶45千米，乙车每小时行驶多少千米？
<gadget id="calculator">45 * 8</gadget>
<output>360</output>

<gadget id="calculator">800 - 360</gadget>
<output>440</output>

<gadget id="calculator">440 / 8</gadget>
<output>55</output>

<result>55</result>