The pass rate of a sample of 300 pieces of textile products is 98%, indicating how many of them are unqualified.
一种纺织品抽样300件产品的合格率是98%，说明其中有多少件是不合格的．
<gadget id="calculator">98 / 100</gadget>
<output>49/50 = around 0.98</output>

<gadget id="calculator">1 - (49/50)</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">300 * (1/50)</gadget>
<output>6</output>

<result>6</result>