A cylindrical bucket with a bottom diameter of 20 cm is filled with water, and a small cone with a bottom area (3/5) of the bottom area of the barrel and a height of 10 cm is placed in the water. When the small cone is pulled out from the bucket , how many centimeters does the water surface in the bucket fall?
一个底面直径为20厘米的圆柱形水桶装着水，在水中放一个底面积是木桶底面积的(3/5)且高为10厘米的小圆锥体，当小圆锥体从桶中掏出后，桶内的水面降落多少厘米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">20 / 2</gadget>
<output>10</output>

<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">3.14 * 100</gadget>
<output>314</output>

<gadget id="calculator">10 / 314</gadget>
<output>5/157 = around 0.031847</output>

<gadget id="calculator">(1/3) * (3/5) * 3.14 * 100 * (5/157)</gadget>
<output>2</output>

<result>2</result>