After filling a cube container with a side length of 6 cm with water, pour it into a cuboid water tank with a length of 12 cm, a width of 6 cm, and a height of 5 cm. What is the height of the water surface in cm?
把一个棱长6厘米的正方体容器装满水后，倒入一只长12厘米，宽6厘米，高5厘米的长方体水箱里，水面高多少厘米．
<gadget id="calculator">6 * 6 * 6</gadget>
<output>216</output>

<gadget id="calculator">12 * 6</gadget>
<output>72</output>

<gadget id="calculator">216 / 72</gadget>
<output>3</output>

<result>3</result>