Process a batch of parts, complete all the processing tasks every day (5/36), 3 days later there are still 105 unfinished parts, how many parts are there in this batch?
加工一批零件，每天完成全部加工任务的(5/36)，3天后还有105个没完成，这批零件有多少个？
<gadget id="calculator">5 / 36</gadget>
<output>5/36 = around 0.138889</output>

<gadget id="calculator">(5/36) * 3</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">1 - (5/12)</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">105 / (7/12)</gadget>
<output>180</output>

<result>180</result>