Two cars, A and B, start at the same time from places A and B, which are 260 kilometers apart, and drive toward each other. Car A travels 20 kilometers per hour, and car B travels 45 kilometers per hour. How many kilometers did B travel when they meet?
甲乙两车分别从相距260千米的A、B两地同时出发，相向而行，甲车每小时行20千米，乙车每小时行45千米，相遇时乙车行了多少千米？
<gadget id="calculator">20 + 45</gadget>
<output>65</output>

<gadget id="calculator">260 / 65</gadget>
<output>4</output>

<gadget id="calculator">45 * 4</gadget>
<output>180</output>

<result>180</result>