A, B, and C are 208 meters apart in turn, and A, B, and C walk 90 meters, 80 meters, and 72 meters in sequence every minute. If A, B, and C start at the same time, after a few minutes, the distance between A and B and C is the same for the first time?
甲、乙、丙三人依次相距208米，甲、乙、丙每分钟依次走90米、80米、72米．如果甲、乙、丙同时出发，那么经过几分钟，甲第一次与乙、丙的距离相等？
<result>22.29</result>