It takes 2 hours for car A to travel from city A to city B, and it takes 3 hours for car B to travel from city B to city A. Now the two cars start from cities A and B at the same time and drive toward each other. When car A travels 15 kilometers , Car B is less than 3 kilometers away from the midpoint of cities A and B. How many kilometers is the distance between car A and car B at this time?
甲车从A城市到B城市要行驶2小时，乙车从B城市到A城市要行驶3小时，现在两车分别从A、B两城市同时出发相向而行，当甲车行驶15千米时，乙车距A、B两城市的中点还差3千米没有到，这时甲车与乙车相距多少千米．
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">15 / (3/2)</gadget>
<output>10</output>

<gadget id="calculator">10 + 3</gadget>
<output>13</output>

<gadget id="calculator">15 - 13</gadget>
<output>2</output>

<gadget id="calculator">3 - 2</gadget>
<output>1</output>

<result>1</result>