Master Li made a batch of parts, and 1900 parts were qualified, with a pass rate of 95%. How many parts did Master Li make in total?
李师傅做了一批零件，做的零件合格了1900个，合格率为95%，李师傅一共做了多少个零件？
<gadget id="calculator">95 / 100</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">1_900 / (19/20)</gadget>
<output>2_000</output>

<result>2_000</result>