conical pile of sand covers an area of 30 square meters and is 4 meters high. Put this pile of sand on a road with a width of 8 meters and an average thickness of 5 centimeters. How many meters can it support the road?
一个圆锥形的沙堆，占地面积为30平方米，高4米．把这堆沙辅在宽8米的路上，平均辅厚5厘米，能辅路多少米？
<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">4 / (2/5)</gadget>
<output>10</output>

<gadget id="calculator">(1/3) * 30 * 10</gadget>
<output>100</output>

<result>100</result>