A cylinder and a cone have the same base and height, the sum of their volumes is 196 cubic decimeters, what is the volume of the cone in cubic decimeters?
一个圆柱和一个圆锥等底等高，它们的体积之和是196立方分米，圆锥体积是多少立方分米．
<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">196 / 4</gadget>
<output>49</output>

<result>49</result>