There is a batch of goods at the station. On the first day, (1/3) of all the goods are removed by 20 tons less, and (1/4) of all the goods are removed by 10 tons on the second day. At this time, there are still 70 tons of goods in the station. How many tons is this shipment in total?
车站有一批货物，第一天运走全部货物的(1/3)少20吨，第二天运走全部货物的(1/4)多10吨，这时车站还存货物70吨．这批货物一共有多少吨？
<gadget id="calculator">70 - 20</gadget>
<output>50</output>

<gadget id="calculator">10 + 50</gadget>
<output>60</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<gadget id="calculator">1 - (1/3) - (1/4)</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">60 / (5/12)</gadget>
<output>144</output>

<result>144</result>