For a pile of coal, the ratio of the number of tons removed on the first day to the remaining tons is 1:4. After 4.8 tons were removed on the second day, 1/3 of the total amount was removed in two days. This pile of coal has How many tons?
一堆煤，第一天运走的吨数与剩余吨数的比是1：4，第二天运走4.8吨后，两天正好运走了总数的(1/3)，这堆煤有多少吨？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 + 4</gadget>
<output>5</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/3) - (1/5)</gadget>
<output>2/15 = around 0.133333</output>

<gadget id="calculator">4.8 / (2/15)</gadget>
<output>36</output>

<result>36</result>