For a batch of goods, 30% of the goods were transported on the first day, 35% on the second day, and 35 tons on the third day. How many tons is this shipment in total?
有一批货物，第一天运走30%，第二天运走35%，第三天运走35吨刚好运完．这批货物共有多少吨？
<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">35 / 100</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">1 - (3/10) - (7/20)</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">35 / (7/20)</gadget>
<output>100</output>

<result>100</result>