A cone and a cylinder have the same base and height, and the sum of their volumes is 16 cubic meters. What is the volume of the cone in cubic meters?
圆锥和圆柱等底等高，体积和是16立方米，这个圆锥的体积是多少立方米．
<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">16 / 4</gadget>
<output>4</output>

<result>4</result>