A convoy transports a batch of goods. On the first day, it transports 30 tons. On the second day, it transports more (2/3) than the first day. It happens to be finished in two days. How many tons are there in total for this batch of goods?
一个运输队运一批货物，第一天运了30吨，第二天比第一天多运了(2/3)，两天恰好运完，这批货物共有多少吨？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 + (2/3)</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">30 * (5/3)</gadget>
<output>50</output>

<gadget id="calculator">50 + 30</gadget>
<output>80</output>

<result>80</result>