Cars A and B start from places A and B respectively, and drive back and forth between A and B. It is known that the speed of car A is (3/7) that of car B, and the two cars meet for the 2007th time (here refers to the face-to-face meeting) exactly 120 kilometers away from the place of the 2008th meeting. So, what is the distance in kilometers between A and B?
甲乙两车分别从A，B两地出发，在A，B之间不断往返行驶，已知甲车的速度是乙车的速度的(3/7)，并且甲乙两车第2007次相遇(这里特指面对面的相遇)的地点与第2008次相遇的地点恰好相距120千米．那么，A、B两地之间的距离是多少千米？
<gadget id="calculator">3 + 7</gadget>
<output>10</output>

<gadget id="calculator">7 / 10</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">(7/10) * 2</gadget>
<output>7/5 = around 1.4</output>

<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">(3/10) * 2</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(7/5) - (3/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">120 / (4/5)</gadget>
<output>150</output>

<result>150</result>