A cylinder and a cone with the same base and height, the sum of their volumes is 36 cubic centimeters, what is the volume of the cylinder in cubic centimeters?
等底等高的一个圆柱和一个圆锥，它们的体积之和是36立方厘米，圆柱的体积是多少立方厘米．
<gadget id="calculator">1 + 3</gadget>
<output>4</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">36 * (3/4)</gadget>
<output>27</output>

<result>27</result>