The bookstore sells all books at a 20% discount today is the membership day. Li Jun is a member. He bought a book for 32 yuan. How much is the original price of this book?
书店今天是会员日对所有的书打八折出售，李俊是会员，他用32元买了一本书，那么这本书的原价是多少元？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">32 / (4/5)</gadget>
<output>40</output>

<result>40</result>