A cuboid water tank is 1.2 meters long, 0.8 meters wide, 0.4 meters high, and 0.3 meters deep. After putting a cuboid iron block with a length of 0.6 meters and a width of 0.5 meters, the water just fills the tank. What is the height of the iron block in meters?
一个长方体水缸，长1.2米，宽0.8米，高0.4米，水深0.3米，放入一块长0.6米，宽0.5米的长方体铁块后，水正好满缸，铁块的高是多少米？
<gadget id="calculator">0.4 - 0.3</gadget>
<output>0.1</output>

<gadget id="calculator">1.2 * 0.8 * 0.1</gadget>
<output>0.096</output>

<gadget id="calculator">0.6 * 0.5</gadget>
<output>0.3</output>

<gadget id="calculator">0.096 / 0.3</gadget>
<output>0.32</output>

<result>0.32</result>