Put an iron block into a cuboid tank with a length of 40 cm and a width of 15 cm. The water level rises by 3 cm. What is the volume of the iron block in cubic centimeters?
把一个铁块放入一个长为40cm，宽为15cm的长方体水槽中，水面上升3cm，求这个铁块的体积是多少立方厘米？
<gadget id="calculator">40 * 15 * 3</gadget>
<output>1_800</output>

<result>1_800</result>