Cars A and B are driving towards each other at the same time from two places 450 kilometers apart, and after 5 hours, they are still 25 kilometers apart. Car A travels 45 kilometers per hour, how many kilometers per hour does Car B travel?
甲、乙两车同时从相距450千米的两地相对而行，5小时后还相距25千米．甲车每小时行驶45千米，乙车每小时行驶多少千米．
<gadget id="calculator">450 - 25</gadget>
<output>425</output>

<gadget id="calculator">425 / 5</gadget>
<output>85</output>

<gadget id="calculator">85 - 45</gadget>
<output>40</output>

<result>40</result>