Obviously, I bought a book at a bookstore with a "12% discount" for 17.6 yuan. What is the original price of this book?
明明在书店打"八八折"花17.6元买了一本书，这本书原价多少元．
<gadget id="calculator">88 / 100</gadget>
<output>22/25 = around 0.88</output>

<gadget id="calculator">17.6 / (22/25)</gadget>
<output>20</output>

<result>20</result>