If a metal cone with a base radius of 10 cm and a height of 15 cm is immersed in water in a cylindrical container with a base diameter of 40 cm, how many centimeters will the water in the cylinder rise?
将一个底面半径是10厘米，高为15厘米的金属圆锥体，全部浸入在一个底面直径是40厘米的圆柱形容器的水中，圆柱里的水会上升多少厘米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) * 3.14 * 10 * 10 * 15</gadget>
<output>1_570</output>

<gadget id="calculator">40 / 2</gadget>
<output>20</output>

<gadget id="calculator">3.14 * 20 * 20</gadget>
<output>1_256</output>

<gadget id="calculator">1_570 / 1_256</gadget>
<output>5/4 = around 1.25</output>

<result>5/4 = around 1.25</result>