The canteen has a conical coal pile with a bottom diameter of 4 meters and a height of 1.2 meters. If this canteen burns an average of 0.314 cubic meters of coal per day, how many days can this pile of coal be burned?
食堂有一个圆锥形煤堆，底面直径4米，高1.2米．如果这个食堂平均每天烧煤0.314立方米，这堆煤可以烧多少天？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">4 / 2</gadget>
<output>2</output>

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">(1/3) * 3.14 * 4 * 1.2</gadget>
<output>5.024</output>

<gadget id="calculator">5.024 / 0.314</gadget>
<output>16</output>

<result>16</result>