There is a batch of goods at the station, 40% of the total is transported in the morning, and 1/5 of the total is transported in the afternoon, leaving 36 tons undelivered. How many tons is this shipment in total?
车站有一批货物，上午运走了总数的40%，下午运走了总数的(1/5)，还剩下36吨没有运．这批货物一共有多少吨？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (2/5) - (1/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">36 / (2/5)</gadget>
<output>90</output>

<result>90</result>