A conical sand pile with a base area of 15m**2 and a height of 1.8m. Spread this pile of sand on a road with a width of 6m and a thickness of 5cm. How many meters can it cover?
一个底面积为15m**2的圆锥形沙堆，高1.8m．把这堆沙子铺在一条宽6m的公路上，铺5cm厚，能铺多少米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) * 15 * 1.8</gadget>
<output>9</output>

<gadget id="calculator">6 * 0.05</gadget>
<output>0.3</output>

<gadget id="calculator">9 / 0.3</gadget>
<output>30</output>

<result>30</result>