Car A starts from Station A and goes to Station B. At the same time, cars B and C start from Station B and drive toward A in opposite directions. A meets B on the way and then meets C after 20 minutes. It is known that the speeds of A, B, and C are 90km, 80km, and 60km per hour respectively, so how many kilometers are the distances between A, B, and stations?
汽车A从甲站出发开往乙站，同时汽车B、C从乙站出发与A相向而行开往甲站，途中A与B相遇20分钟后再与C相遇．已知A、B、C的速度分别是每小时90km，80km，60km，那么甲乙两站的路程是多少km．
<gadget id="calculator">90 + 80</gadget>
<output>170</output>

<gadget id="calculator">90 + 60</gadget>
<output>150</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">150 * (1/3)</gadget>
<output>50</output>

<gadget id="calculator">80 - 60</gadget>
<output>20</output>

<gadget id="calculator">50 / 20</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">170 * (5/2)</gadget>
<output>425</output>

<result>425</result>