Cars A and B are traveling towards each other from places A and B respectively. Car A travels 600 meters per minute. One minute after car A starts, car B also leaves. Car B is faster than car A (1/6 ), when the two cars meet. Car A has been driving for 21 minutes, how many meters is the distance between A and B?
甲、乙两车分别从从A、B两地相向而行，甲车每分钟行驶600米，甲车出发1分钟后，乙车也出发了，乙车的速度比甲车快(1/6)，两车相遇时．甲车行驶了21分钟，A、B两地相距多少米？
<gadget id="calculator">600 * 21</gadget>
<output>12_600</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 + (1/6)</gadget>
<output>7/6 = around 1.166667</output>

<gadget id="calculator">21 - 1</gadget>
<output>20</output>

<gadget id="calculator">600 * (7/6) * 20</gadget>
<output>14_000</output>

<gadget id="calculator">12_600 + 14_000</gadget>
<output>26_600</output>

<result>26_600</result>