A cylinder and a cone, their volume ratio is 3:2, and the ratio of the base radius is 1:2. It is known that the height of the cone is 5 cm, and how many centimeters is the height of the cylinder.
一个圆柱与一个圆锥，它们的体积比是3：2，底面半径比是1：2，已知圆锥高5厘米，圆柱高多少厘米．
<gadget id="calculator">2 * 5</gadget>
<output>10</output>

<result>10</result>