A passenger car and a truck leave opposite places A and B. The bus travels 80 kilometers per hour, and the truck travels 60 kilometers per hour. After 4 hours, the distance between the two cars is 100 kilometers. Find the distance in kilometers between A and B ? (consider two cases)
客车和货车从甲、乙两地相对开出，客车每小时行80千米，货车每小时行60千米，4小时后两车相距100千米，求甲乙两地间的距离是多少千米？(考虑两种情况)
<gadget id="calculator">140 * 4</gadget>
<output>560</output>

<gadget id="calculator">560 - 100</gadget>
<output>460</output>

<result>460</result>