A worm crawls from point A to point B. If its speed increases by 1 meter per minute, it can arrive 15 minutes earlier. If its speed increases by 2 meters per minute, it can arrive 15 minutes earlier. What is the distance between A and B?
一只小虫从A处爬到B处．如果它的速度每分增加1米，可提前15分到达．如果它的速度每分再增加2米，则又可提前15分到达．A处到B处之间的路程是多少米．
<gadget id="calculator">3 * 60</gadget>
<output>180</output>

<result>180</result>