A certain workshop needs to process a batch of parts. On the first day, 1/20 of the total number is processed. On the second day, 180 more parts are processed than on the first day. A total of 900 parts are processed in two days. How many parts are there in total?
某车间要加工一批零件，第一天加工了总数的(1/20)，第二天比第一天多加工了180个，两天共加工零件900个．这批零件一共有多少个？
<gadget id="calculator">900 - 180</gadget>
<output>720</output>

<gadget id="calculator">1 / 20</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">(1/20) * 2</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">720 / (1/10)</gadget>
<output>7_200</output>

<result>7_200</result>