Two cars start from point A at the same time and drive to point B along a road. Car A travels 5 kilometers more per hour than car B. Car A arrives at point C on the way (1/2) hour earlier than car B. When car B arrives at point C, car A just arrives at point B. It is known that the road from point C to point B is 30 kilometers long. Find the distance in kilometers between A and B?
两辆汽车同时从A地出发，沿一条公路开往B地．甲车比乙车每小时多行5千米，甲车比乙车早(1/2)小时到达途中的C地，当乙车到达C地时，甲车正好到达B地．已知C地到B地的公路长30千米．求A、B两地之间相距多少千米？
<gadget id="calculator">30 / 5</gadget>
<output>6</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">30 / (1/2)</gadget>
<output>60</output>

<gadget id="calculator">6 * 60</gadget>
<output>360</output>

<result>360</result>