The distance between A and B cities is 425 kilometers. A bus and a truck are traveling towards each other from A and B at the same time. The bus travels 45 kilometers per hour, and the truck travels 40 kilometers per hour. When the two vehicles meet, how much does the bus travel? km?
甲乙两城相距425千米，一辆客车和一辆货车分别从甲乙两地同时相向而行，客车每小时行45千米，货车每小时40千米，当两辆相遇时，客车行了多少千米？
<gadget id="calculator">40 + 45</gadget>
<output>85</output>

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

<gadget id="calculator">45 * 5</gadget>
<output>225</output>

<result>225</result>