The volume of a cone is 300cm**3, the area of its base is 60cm**2, what is its height in cm.
一个圆锥的体积是300cm**3，它的底面积是60cm**2，它的高是多少cm．
<gadget id="calculator">3 / 60</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">300 * (1/20)</gadget>
<output>15</output>

<result>15</result>