There are three lines of buses stopping at a bus station. The first line sends a car every 10 minutes, the second line sends a car every 12 minutes, and the third line sends a car every 15 minutes. At 5 o'clock in the morning, the first car departs from the three lines at the same time, so when will the next simultaneous departure be.
某公共汽车站停有三条线路的公交车．第一条线路每10分钟发一辆车，第二条线路每12分钟发一辆车，第三条线路每15分钟发一辆车．早上5时，三条线路同时发出第一辆车，那么下一次同时发车是在多少时．
<result>6</result>