A worm crawls from point A to point B. If its speed increases by 1 meter per minute, it can arrive 10 minutes earlier; if its speed increases by 2 meters, it can arrive 10 minutes earlier. What is the distance between A and B in meters?
一只小虫从A处爬到B处．如果它的速度每分钟增加1米，可提前10分钟到达；如果它的速度再增加2米，则又可提前10分钟到达．则A处到B处之间的路程是多少米．
<gadget id="calculator">3 * 40</gadget>
<output>120</output>

<result>120</result>