There is a batch of chemical fertilizers in the warehouse, 25% of the total is transported away for the first time, and if another 3.4 tons are transported away, the total transported away will account for 1/3 of the total. How many tons of this batch of fertilizer?
仓库里有一批化肥，第一次运走总数的25%，如果再运走3.4吨，运走的就占总数的(1/3)．这批化肥共多少吨？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/3) - (1/4)</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">3.4 / (1/12)</gadget>
<output>40.8</output>

<result>40.8</result>