A cylindrical container with a capacity of 80 cubic centimeters is filled with water and poured into a conical container, and 20 cubic centimeters of water is filled. It is known that the bottom area of the cone is 30 square centimeters, and the height of the cone is how many centimeters.
容积是80立方厘米圆柱形容器灌满水，倒入一个圆锥容器中，结果满出了20立方厘米的水，已知圆锥的底面积是30平方厘米，圆锥的高是多少厘米．
<gadget id="calculator">80 - 20</gadget>
<output>60</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">60 / (1/3) / 30</gadget>
<output>6</output>

<result>6</result>