There are two cylindrical containers A and B with inner radii of 6 cm and 8 cm and the same height. Pour all the water in container A filled with water into container B. The water depth is 2 cm lower than (7/8) the height of the container, so what is the height of the container?
有内半径分别是6厘米和8厘米，高度相同的两个圆柱形容器A和B．将装满水的A容器中的水全部倒入B容器．水深比容器的高度的(7/8)还低2厘米，那么容器的高是多少？
<result>6.4</result>