The qualified rate of an electronic product is 95%, if a batch of 1600 products are produced, how many unqualified products are there?
一种电子产品的合格率为95%，如果生产一批产品1600台，那么不合格的产品有多少台？
<gadget id="calculator">95 / 100</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">1 - (19/20)</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">1_600 * (1/20)</gadget>
<output>80</output>

<result>80</result>