A cuboid tank measures 18cm in length, 12cm in width, 30cm in height and 18cm in depth. After putting a large stone into the water, the depth of the water is 27cm. What is the volume of the stone?
一个长方体水槽，从里面量长18cm，宽12cm，高30cm，水深18cm．把一块大石头全部放入水中后，水深27cm．石头的体积是多少？
<gadget id="calculator">27 - 18</gadget>
<output>9</output>

<gadget id="calculator">18 * 12 * 9</gadget>
<output>1_944</output>

<result>1_944</result>