One is 6 decimeters long and 5 decimeters wide. A cuboid container with a height of 3 decimeters is filled with water, and the height of the water surface is 2 decimeters. After putting an apple into the container, the height of the water surface is 2.3 decimeters. What is the volume of this tomato?
一个长6分米，宽5分米．高3分米的长方体容器里装着水，水面高度为2分米，往容器里放进一个苹果后，此时水面的高度为2.3分米，这个西红柿的体积是多少？
<gadget id="calculator">2.3 - 2</gadget>
<output>0.3</output>

<gadget id="calculator">6 * 5 * 0.3</gadget>
<output>9</output>

<result>9</result>