A rectangular parallelepiped container with a side length of 5 cm is filled with some water, which takes up exactly (2/3) of the capacity of the container. Now put a potato in it so that it is completely submerged in the water. At this time, the water level rises by 6 cm. , just flush with the top of the container, find the volume of this cuboid container.
一个底面边长是5厘米的长方体容器里面装有一些水，恰好占这个容器容量的(2/3)，现在把一个土豆放入其中，使它完全浸没在水中，这时水面上升了6厘米，刚好与容器上口平齐，求这个长方体容器的容积．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 - (2/3)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">6 / (1/3)</gadget>
<output>18</output>

<gadget id="calculator">5 * 5 * 18</gadget>
<output>450</output>

<result>450</result>