A cone-shaped pile of sand has a bottom area of 25 square meters and a height of 1.8 meters. How many meters can be paved with this pile of sand on a road with a width of 8 meters and a thickness of 5 cm?
一个圆锥体形的沙堆，底面积是25平方米，高1.8米，用这堆沙在8米宽的公路上铺5厘米厚的路面，能铺多少米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">8 * (1/20)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1.8 / (2/5)</gadget>
<output>4.5</output>

<gadget id="calculator">(1/3) * 25 * 4.5</gadget>
<output>37.5</output>

<result>37.5</result>