In a glass tank with a length of 25 cm and a width of 20 cm, there is a cube iron block with a side length of 10 cm. At this time, the water depth is 10 cm. If this piece of iron is taken out of the tank, then the How deep is the water in centimeters?
在一个长为25厘米、宽为20厘米的玻璃缸中，有一块棱长为10厘米的正方体铁块，这时水深10厘米，如果把这块铁块从缸中取出来，那么缸中的水深多少厘米？
<gadget id="calculator">25 * 20</gadget>
<output>500</output>

<gadget id="calculator">10 / 500</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">10 * 10 * (1/50)</gadget>
<output>2</output>

<gadget id="calculator">10 - 2</gadget>
<output>8</output>

<result>8</result>