When transporting a batch of goods, 20% of the first shipment, 6 tons in the second shipment, and 2 tons less than the sum of the previous two shipments in the third shipment, at this time there is still (1/3) of this batch of goods that have not been shipped Come on, how many tons are there in total for this shipment?
运一批货，第一次运走20%，第二次运走6t，第三次运的比前两次的总和少2t，这时还剩下这批货物的(1/3)没有运走，这批货物共有多少吨？
<gadget id="calculator">12 - 2</gadget>
<output>10</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(2/3) - (2/5)</gadget>
<output>4/15 = around 0.266667</output>

<gadget id="calculator">10 / (4/15)</gadget>
<output>75/2 = around 37.5</output>

<result>75/2 = around 37.5</result>