A cube iron box with a side length of 6 cm is filled with water, pour the water into a cuboid tank with a length of 9 cm and a width of 8 cm, regardless of the thickness of the iron sheet, find the depth of the water.
一个边长为6厘米的正方体铁盒内装满了水，将水倒入一个长9厘米，宽8厘米的长方体水槽，不计铁皮厚度，求水的深度．
<gadget id="calculator">9 * 8</gadget>
<output>72</output>

<gadget id="calculator">6 / 72</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">6 * 6 * (1/12)</gadget>
<output>3</output>

<result>3</result>