The length of the railway between A and B is 496 kilometers. A passenger train travels from A to B at a speed of 92 kilometers per hour. Half an hour after the passenger train leaves, a freight train travels from B to A at an hourly speed. How long does it take for the truck to meet the passenger car after driving 88 kilometers?
甲、乙两地间的铁路长是496千米，一列客车从甲地开往乙地，每小时行驶92千米，客车开出半小时后，一列货车从乙地开往甲地，每小时行驶88千米，货车开出后多长时间与客车相遇？
<result>0.5</result>