A cuboid has 20 cubic decimeters more volume than a cone. If they have the same base and height, what is the volume of the cone?
一个长方体比一个圆锥体的体积多20立方分米，如果它们等底等高，那么这个圆锥体的体积是多少立方分米．
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">20 / 2</gadget>
<output>10</output>

<result>10</result>