cuboid container is 2 decimeters long at the bottom, 1.5 decimeters wide, and 1 decimeter high. A stone is placed in the container and the water level rises by 0.2 decimeters. What is the volume of the stone?
一个长方体容器，底面长2分米，宽1.5分米，高l分米，将一块石块放入容器中水面升高0.2分米，这个石头的体积是多少？
<gadget id="calculator">2 * 1 * 0.2</gadget>
<output>0.4</output>

<result>0.4</result>