There is a batch of goods to be transported in the freight yard. On the first day, 3/8 of the total number will be transported, and 25% of the total number will be transported on the second day. There are still 270 tons that have not been transported. How many tons are there in this batch?
货场有一批货物要运走，第一天运走总数的(3/8)，第二天运走总数的25%，还有270吨没有运走，这批货物有多少吨？
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

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

<gadget id="calculator">1 - (3/8) - (1/4)</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">270 / (3/8)</gadget>
<output>720</output>

<result>720</result>