The absence rate of a certain class is 5%, there are 38 students in the school, how many people are absent.
某班的缺勤率为5%，到校有38人，缺勤的有多少人．
<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">1 - (1/20)</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">38 / (19/20)</gadget>
<output>40</output>

<gadget id="calculator">40 * (1/20)</gadget>
<output>2</output>

<result>2</result>