Xiao Wang's walking speed is 4.8 km/h, and Xiao Zhang's walking speed is 5.4 km/h. They both go from A to B. Xiao Li rides a bicycle at a speed of 10.8 km/h, going from place B to place A. The three of them set off at the same time, and 5 minutes after Xiao Zhang met Xiao Li, Xiao Wang met Xiao Li again. Question: How many points does it take for Xiao Li to ride a bicycle from place B to place A?
小王的步行速度是4.8千米/小时，小张的步行速度是5.4千米/小时，他们两人从甲地到乙地去．小李骑自行车的速度是10.8千米/小时，从乙地到甲地去．他们3人同时出发，在小张与小李相遇后5分钟，小王又与小李相遇．问：小李骑车从乙地到甲地需要多少分？
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