cuboid container filled with water has a length of 10 cm, a width of 8 cm, and a height of 9 cm. The water depth inside is 2cm. Now put a cube iron block with side length 4cm into the bottom of this cuboid container, the water surface does not submerge the cube iron block. How high is the water in the cuboid container?
一个盛有水的长方体容器，从里面量长10cm，宽8cm，高9cm．里面的水深2cm．现将一个棱长4cm的正方体铁块放入到这个长方体容器的底部，水面没有淹没正方体铁块．这时长方体容器里的水高多少？
<gadget id="calculator">10 * 8</gadget>
<output>80</output>

<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">80 - 16</gadget>
<output>64</output>

<gadget id="calculator">2 / 64</gadget>
<output>1/32 = around 0.03125</output>

<gadget id="calculator">10 * 8 * (1/32)</gadget>
<output>5/2 = around 2.5</output>

<result>5/2 = around 2.5</result>