A kind of schoolbag is sold at a reduced price on Children's Day, each priced at 28 yuan, which is 20% lower than the original price. How much is the original price of each schoolbag?
一种书包，儿童节降价出售，每个售价28元，比原来的售价降低了20%．这种书包原来每个售价多少元？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">28 / (4/5)</gadget>
<output>35</output>

<result>35</result>