A cuboid bucket with a height of 30 cm and a square bottom with a side length of 10 cm is filled with (1/2) volume of water. Now put a cuboid stone with a side length of 2 cm*2 cm*3 cm into the bucket How many pieces of this kind of stones need to be thrown in to make the water level just equal to the height of the bucket?
一个高为30厘米，底面为边长是10厘米的正方形的长方体水桶，其中装有(1/2)容积的水，现在向桶中投入边长为2厘米*2厘米*3厘米的长方体石块，问需要投入多少块这种石块才能使水面恰与桶高相齐？
<gadget id="calculator">10 * 10 * 30</gadget>
<output>3_000</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">2 * 2 * 3</gadget>
<output>12</output>

<gadget id="calculator">(1/2) / 12</gadget>
<output>1/24 = around 0.041667</output>

<gadget id="calculator">3_000 * (1/24)</gadget>
<output>125</output>

<result>125</result>