Measured from the inside, a cylindrical container with a bottom radius of 10 decimeters contains a conical iron block with a bottom diameter of 6 decimeters and a height of 10 decimeters. After the container is filled with water, the cone iron The block is completely submerged. Now remove the iron block, how many decimeters does the water level drop?
从里面量，一个底面半径是10分米的圆柱体容器，里面放有一个底面直径是6分米，高是10分米的圆锥体铁块，在容器倒满水后，这时圆锥体铁块被完全浸没．现将铁块捞走，水面下降了多少分米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">(1/3) * 3.14 * 9 * 10</gadget>
<output>94.2</output>

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

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

<gadget id="calculator">94.2 / 314</gadget>
<output>0.3</output>

<result>0.3</result>