A cube glass cylinder, the side length is 2 decimeters from the inside, and there is 4L of water in it. After a stone is immersed in the water, the water surface rises to 16 cm. What is the volume of the stone?
一个正方体玻璃缸，从里面量棱长2分米，里面有4L水，把一块石头浸入水中后，水面上升到16厘米，求石块的体积？
<gadget id="calculator">16 / 10</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">4 / 2 / 2</gadget>
<output>1</output>

<gadget id="calculator">(8/5) - 1</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">2 * 2 * (3/5)</gadget>
<output>12/5 = around 2.4</output>

<result>12/5 = around 2.4</result>