There is a cone of sand with a base area of 7.2 square meters and a height of 2.5 meters. Spread these sands in a cuboid bunker with a length of 5 meters and a width of 3 meters. How thick can it be?
有一个圆锥体沙堆，底面积是7.2平方米，高2.5米．将这些沙铺在一个长5米，宽3米的长方体沙坑里，能铺多厚？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">5 * 3</gadget>
<output>15</output>

<gadget id="calculator">2.5 / 15</gadget>
<output>0.166667</output>

<gadget id="calculator">(1/3) * 7.2 * 0.166667</gadget>
<output>0.400001</output>

<result>0.400001</result>