There is a road between A and B. A starts from A and walks to B. B rides a motorcycle from B at the same time and goes back and forth between A and B continuously. They set off at the same time. After 60 minutes, the two met for the first time. After 12 minutes, B caught up with A for the first time. When A arrived at B, how many times did B catch up with A?
A、B两地之间有条公路，甲从A地出发，步行到B地，乙骑摩托车从B地同时出发，不停地往返于A、B两地之间．他们同时出发，60分钟后两人第一次相遇，12分钟后乙第一次追上甲，当甲到达B地时，乙追上甲多少次．
<result>5</result>