A cylinder of plasticine has a base area of 12cm**2 and a height of 5cm. If it is squeezed into a cone with the same base size, what is the height of the cone?
一个圆柱形橡皮泥，底面积是12cm**2，高是5cm．如果把它捏成同样底面大小的圆锥，这个圆锥的高是多少？
<gadget id="calculator">12 * 5</gadget>
<output>60</output>

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

<gadget id="calculator">60 * (1/4)</gadget>
<output>15</output>

<result>15</result>