The height of a cone is 12 centimeters and its volume is 40 cubic centimeters, which is 20 cubic centimeters less than the volume of a cylinder with the same base. What is the height of this cylinder?
一个圆锥的高是12厘米体积是40立方厘米，比与它等底的圆柱体积少20立方厘米，这个圆柱的高是多少．
<gadget id="calculator">40 + 20</gadget>
<output>60</output>

<gadget id="calculator">3 / 12</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">40 * (1/4)</gadget>
<output>10</output>

<gadget id="calculator">60 / 10</gadget>
<output>6</output>

<result>6</result>