container with a length of 40 cm, a width of 30 cm, and a height of 28 cm is measured from the inside, and the depth of water is 20 cm. Grandpa put a few small carps into the container, and the water level rose by 1.5 cm. What is the volume of these carp in cubic centimeters?
一个从里面量长40厘米、宽30厘米、高28厘米的容器，水深20厘米．爷爷往容器中放了几条小鲤鱼，这时水面上升了1.5厘米．这几条鲤鱼的体积是多少立方厘米？
<gadget id="calculator">40 * 30 * 1.5</gadget>
<output>1_800</output>

<result>1_800</result>