cuboid pool is 3 meters long, 2 meters wide, and the water depth in the pool is 7 decimeters. If a steel plate with a volume of 2.4 cubic meters is completely immersed in the water, how many decimeters will the water surface rise?
一个长方体水池，长3米，宽2米，池中水深7分米，把一块体积为2.4立方米的钢板完全沉浸在水中，水面上升多少分米？
<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<gadget id="calculator">2.4 / 6</gadget>
<output>0.4</output>

<result>0.4</result>