Teams A, B, and C have jointly shipped a batch of goods, and team B has transported 40% of the total goods. The ratio of the cargo volume of team A to team C is 1:3. It is known that teams B and C have shipped a total of 25.5 tons. How many tons is this shipment in total?
甲乙丙三个队共同运完一批货，乙队运了全部货物的40%，甲队运货量与丙队的比是1：3，已知乙队和丙队一共运了25.5吨，这批货物一共多少吨？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 + 3</gadget>
<output>4</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(3/5) * (3/4)</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">(2/5) + (9/20)</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">25.5 / (17/20)</gadget>
<output>30</output>

<result>30</result>