Cars A and B drive from city A to city B at the same time. Car A travels 80 kilometers per hour, and car B travels 65 kilometers per hour. After 3 hours, car A arrives at city B. How far is car B from city B?
甲、乙两车同时从A城开往B城．甲车每小时行80千米，乙车每小时行65千米．3小时后甲车到达乙地，这时乙车离B城还有多远？
<gadget id="calculator">80 - 65</gadget>
<output>15</output>

<gadget id="calculator">15 * 3</gadget>
<output>45</output>

<result>45</result>