If a pile of 40 cubic meters of concrete is laid on a road 80 meters long and 5 meters wide, how many centimeters thick can it be laid?
把一堆40立方米的混凝土铺在一条长80米，宽5米的路面上，可以铺多少厘米厚？
<gadget id="calculator">80 * 5</gadget>
<output>400</output>

<gadget id="calculator">40 / 400</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(1/10) * 100</gadget>
<output>10</output>

<result>10</result>