A conical pile of sand has a bottom area of 12.56 square meters and a height of 1.2 meters. If this pile of sand is used to pave a road with a length of 5 meters and a width of 4 meters, how many meters thick can the road be paved with?
一个圆锥形的沙堆，底面积是12.56平方米，高1.2米，如果用这堆沙铺长5米，宽4米的路面，能铺厚多少米的路面？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">5 * 4</gadget>
<output>20</output>

<gadget id="calculator">(1/3) / 20</gadget>
<output>1/60 = around 0.016667</output>

<gadget id="calculator">12.56 * 1.2 * (1/60)</gadget>
<output>0.2512</output>

<result>0.2512</result>