passenger car and a truck drive towards each other from places A and B at the same time and meet each other in 6 hours. It is known that the speed ratio of the passenger car and the freight car is 5:4, and the passenger car travels 20 kilometers more than the freight car per hour. What is the distance between A and B in kilometers?
一辆客车和一辆货车同时从甲、乙两地相向而行，6小时相遇．已知客车和货车的速度比是5：4，客车每小时比货车多行20千米．甲、乙两地相距多少千米．
<gadget id="calculator">20 * 5</gadget>
<output>100</output>

<gadget id="calculator">20 * 4</gadget>
<output>80</output>

<gadget id="calculator">100 + 80</gadget>
<output>180</output>

<gadget id="calculator">180 * 6</gadget>
<output>1_080</output>

<result>1_080</result>