How many conical lead ingots with the same base and height can be cast from 6 cylindrical lead ingots of the same size.
6个同样大小的圆柱铅锭，可以铸成多少个与它等底等高的圆锥形铅锭．
<gadget id="calculator">6 * 3</gadget>
<output>18</output>

<result>18</result>