A passenger car and a truck leave opposite places at the same time. The passenger car travels 80 kilometers per hour, and the truck travels 68 kilometers per hour. Two cars meet at a distance of 30 kilometers from the midpoint. How many kilometers are there between A and B?
客车和货车同时从甲乙两地相对开出，客车每小时行80千米，货车每小时行68千米．两车在距中点30千米处相遇，甲乙两地相距多少千米？
<gadget id="calculator">80 + 68</gadget>
<output>148</output>

<gadget id="calculator">80 - 68</gadget>
<output>12</output>

<gadget id="calculator">2 / 12</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">30 * (1/6)</gadget>
<output>5</output>

<gadget id="calculator">148 * 5</gadget>
<output>740</output>

<result>740</result>