Two cars, A and B, depart from two stations 450 kilometers apart at the same time and meet each other after 6 hours. It is known that car A travels 36 kilometers per hour, how many kilometers per hour does car B travel? (solution with equation)
甲乙两辆汽车同时从相距450千米的两个车站相对开出，经过6小时相遇．已知甲车每小时行36千米，乙车每小时行多少千米？(用方程解答)
<gadget id="calculator">36 * 6</gadget>
<output>216</output>

<gadget id="calculator">450 - 216</gadget>
<output>234</output>

<gadget id="calculator">234 / 6</gadget>
<output>39</output>

<result>39</result>