Two cars, A and B, leave from A and B at the same time and meet each other in 4 hours. Car A travels 130 kilometers per hour, and car B travels 110 kilometers per hour. How many miles is the distance between A and B? (Draw a line diagram to sort out the conditions and questions, and then answer them)
甲乙两车分别从A、B两地同时相对开出，4小时相遇，甲车每小时行130千米，乙车每小时行110千米．AB两地相距多少千米？(画线段图整理条件和问题，再解答)
<gadget id="calculator">130 + 110</gadget>
<output>240</output>

<gadget id="calculator">240 * 4</gadget>
<output>960</output>

<result>960</result>