Car A and Car B drive oppositely from two places at the same time, the distance between the two places is 480 kilometers, and they meet after 5 hours. Car A travels 45 kilometers per hour, how many kilometers per hour does Car B travel? (solution by equation)
甲、乙两车同时从两地相对开出，两地相距480千米，5小时后相遇．甲车每小时行45千米，乙车每小时行多少千米？(用方程解)
<gadget id="calculator">45 * 5</gadget>
<output>225</output>

<gadget id="calculator">480 - 225</gadget>
<output>255</output>

<gadget id="calculator">255 / 5</gadget>
<output>51</output>

<result>51</result>