A passenger car and a truck drive towards each other from two places A and B at the same time. The bus travels 74 kilometers per hour, and the truck travels 61 kilometers per hour. The distance between the two vehicles is 45 kilometers after 6 hours. How many kilometers are the distance between A and B? ?
一辆客车和一辆货车同时从甲乙两地相向而行，客车每小时行74千米，货车每时行61千米，两车经过6小时还相距45千米，甲乙两地相距多少千米？
<gadget id="calculator">74 + 61</gadget>
<output>135</output>

<gadget id="calculator">135 * 6</gadget>
<output>810</output>

<gadget id="calculator">810 - 45</gadget>
<output>765</output>

<result>765</result>