A car is driving from City A to City B. After 3 hours, the car breaks down and needs to be repaired for 30 minutes. Then it accelerates at 5 kilometers per hour and continues driving. After another 6 hours, it arrives in City B on time. How many kilometers are there between the two cities?
一辆汽车由甲城开往乙城，3小时后因车发生故障修了30分钟，然后每小时加速5千米继续行驶，再经过6小时准时到达乙城．甲乙两城之间相距多少千米？
<gadget id="calculator">6 / 0.5</gadget>
<output>12</output>

<gadget id="calculator">5 * 12</gadget>
<output>60</output>

<gadget id="calculator">60 * 3</gadget>
<output>180</output>

<gadget id="calculator">60 + 5</gadget>
<output>65</output>

<gadget id="calculator">65 * 6</gadget>
<output>390</output>

<gadget id="calculator">180 + 390</gadget>
<output>570</output>

<result>570</result>