Cars A and B leave from stations A and B respectively at the same time and drive toward each other. When car A reaches the midpoint of the two stations, car B is still 12.5 kilometers away from the midpoint. When car A arrives at station B, car B has only traveled 87.5% of the journey. How many kilometers are there between A and B?
甲、乙两车分别从A、B两站同时开出，相向而行．当甲车到达两站中点时，乙车离中点还有12.5千米．当甲车到达B站时，乙车才行了全程的87.5%．A、B两站相距多少千米？
<gadget id="calculator">12.5 * 2</gadget>
<output>25</output>

<gadget id="calculator">87.5 / 100</gadget>
<output>0.875</output>

<gadget id="calculator">1 - 0.875</gadget>
<output>0.125</output>

<gadget id="calculator">25 / 0.125</gadget>
<output>200</output>

<result>200</result>