Two people, A and B, start from A and B at the same time and walk toward each other. When A has walked the whole distance (1/3), B slows down by 20%, and A continues to travel at the same speed. The two meet at a distance of 2028 meters from B. Finally, they complete the distance at the same time. A and B are far apart. How much rice?
甲、乙两人分别从A、B两地同时出发相向而行．当甲走了全程(1/3)时，乙降速20%，甲继续按原速行进，两人在距离B地2028米处相遇，最后两人同时走完全程，A、B两地相距多少米？
<gadget id="calculator">507 / 325</gadget>
<output>39/25 = around 1.56</output>

<gadget id="calculator">2_028 / (39/25)</gadget>
<output>1_300</output>

<gadget id="calculator">1_300 * 3</gadget>
<output>3_900</output>

<result>3_900</result>