There is a rectangular parallelepiped with a base area of 300 square centimeters and a height of 10 centimeters, which contains water at a depth of 5 centimeters. Now a cuboid iron block with a length of 10 centimeters, a width of 5 centimeters and a height of 4 centimeters is immersed in the water, and the water surface rises how many centimeters?
有一个底面积是300平方厘米，高是10厘米的长方体，里面盛有5厘米深的水，现在把一块长方体铁块，长10厘米，宽5厘米，高4厘米浸没到水里，水面上升多少厘米？
<gadget id="calculator">10 * 5 * 4</gadget>
<output>200</output>

<gadget id="calculator">300 * 5</gadget>
<output>1_500</output>

<gadget id="calculator">200 + 1_500</gadget>
<output>1_700</output>

<gadget id="calculator">1_700 / 300</gadget>
<output>17/3 = around 5.666667</output>

<gadget id="calculator">(17/3) - 5</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>