If a cone with a base area of 15 cm2 and a height of 4 cm is completely submerged in a container filled with water, how many cubic centimeters of water will overflow?
把一个底面积是15平方厘米、高4厘米的圆锥完全浸没在一个盛满水的容器中，将有多少立方厘米的水溢出来？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) * 15 * 4</gadget>
<output>20</output>

<result>20</result>