If an irregular stone is completely immersed in a cuboid water tank with a bottom area of 250 square centimeters, the water level will rise by 3.2 centimeters. What is the volume of this rock in cubic centimeters?
把一块不规则的石块全部浸入底面积是250平方厘米的长方体水箱中，水面上升3.2厘米．这块石块的体积是多少立方厘米？
<gadget id="calculator">250 * 3.2</gadget>
<output>800</output>

<result>800</result>