A cube tank with a side length of 6 decimeters is filled with water of 4 decimeters in height. Now put a rockery rock into the water (completely submerged), and the water surface rises to 5.5 decimeters. What is the volume of the rockery rock in cubic meters? Decimeter.
一个棱长6分米的正方体水槽，里面装有4分米高的水，现将一块假山石放入水中(完全浸没)，水面上升到5.5分米处，这块假山石的体积是多少立方分米．
<gadget id="calculator">5.5 - 4</gadget>
<output>1.5</output>

<gadget id="calculator">6 * 6 * 1.5</gadget>
<output>54</output>

<result>54</result>