The myopia rate of school students should be controlled within 5%. There are 2,200 students in the experimental primary school, and the number of myopia should not exceed a certain number.
在校生近视率应该控制在5%以内，实验小学共有学生2200人，近视的人数不得超过多少人．
<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">2_200 * (1/20)</gadget>
<output>110</output>

<result>110</result>