A cylinder and a cone with the same base and height have a total volume of 48 cubic decimeters, so what is the volume of the cone in cubic decimeters?
等底等高的圆柱和圆锥，它们的体积一共是48立方分米，那么圆锥体积是多少立方分米．
<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">48 / 4</gadget>
<output>12</output>

<result>12</result>