A cylindrical container with a base diameter of 20 cm is filled with a portion of water, and a conical plumb weight with a base diameter of 6 cm and a height of 5 cm is placed in the water. When the lead weight is removed from the water, how many centimeters will the water level in the container drop?
一个底面直径为20厘米的装有一部分水的圆柱体容器，水中放着一个底面直径为6厘米，高5厘米的圆锥体铅锤．当铅锤从水中取出后，容器中的水面会下降几厘米？
<result>0.15</result>