It takes 10 hours for car A to drive from point A to point B, and it takes 15 hours for car B to drive from point B to point A. On a certain day, the two cars drive from the two places at the same time in opposite directions, and finally meet at a distance of 120 kilometers from the midpoint. How many kilometers are there between A and B?
甲车从A地开往B地要10小时，乙车从B地开往A地要15小时，某日两车分别从两地同时相向开出，结果在距中点120千米处相遇．A、B两地相距多少千米？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(3/5) - (2/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">2 / (1/5)</gadget>
<output>10</output>

<gadget id="calculator">120 * 10</gadget>
<output>1_200</output>

<result>1_200</result>