Master Wang produces a batch of parts, and after inspection, 6 of them are unqualified, and the pass rate is 97%. How many parts are there in this batch?
王师傅生产一批零件，经检验，有6个不合格，合格率为97%，这批零件共有多少个．
<gadget id="calculator">97 / 100</gadget>
<output>97/100 = around 0.97</output>

<gadget id="calculator">1 - (97/100)</gadget>
<output>3/100 = around 0.03</output>

<gadget id="calculator">6 / (3/100)</gadget>
<output>200</output>

<result>200</result>