Two cars, A and B, drive from A and B respectively at the same time. Car A travels 65 km per hour, and Car B travels 57 km per hour. The two cars meet at a distance of 20 km from the midpoint of the journey. How many kilometers are there between A and B?
甲、乙两辆汽车同时分别从A、B两地相向开出，甲车每小时行驶65km，乙车每小时行驶57km，两车在距全程中点20km处相遇．A、B两地相距多少千米？
<gadget id="calculator">65 + 57</gadget>
<output>122</output>

<gadget id="calculator">20 * 2</gadget>
<output>40</output>

<gadget id="calculator">65 - 57</gadget>
<output>8</output>

<gadget id="calculator">40 / 8</gadget>
<output>5</output>

<gadget id="calculator">122 * 5</gadget>
<output>610</output>

<result>610</result>