Cut a cylinder into the largest cone. The volume of the cone is 10 cubic centimeters. What is the volume of the cylinder in cubic centimeters?
把一个圆柱削成一个最大的圆锥，圆锥的体积是10立方厘米，圆柱的体积是多少立方厘米．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">10 / (1/3)</gadget>
<output>30</output>

<result>30</result>