A cylinder and a cone have the same base and height, and the sum of their volumes is 36dm**3. So what is the volume of this cylinder.
一个圆柱和一个圆锥等底等高，它们的体积之和是36dm**3．那么这个圆柱的体积是多少．
<gadget id="calculator">1 + 3</gadget>
<output>4</output>

<gadget id="calculator">36 / 4</gadget>
<output>9</output>

<gadget id="calculator">9 * 3</gadget>
<output>27</output>

<result>27</result>