A cone and a cylinder have the same base and height, if the sum of their volumes is 60 cubic centimeters, what is the volume of the cylinder in cubic centimeters?
一个圆锥和一个圆柱等底等高，若它们的体积和是60立方厘米，则圆柱体积是多少立方厘米．
<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">60 / 4</gadget>
<output>15</output>

<gadget id="calculator">15 * 3</gadget>
<output>45</output>

<result>45</result>