book can be sold with a 25% discount for 8 yuan, how much is the original price?
一本书打七五折出售可便宜8元，原价是多少元？
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 - (3/4)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">8 / (1/4)</gadget>
<output>32</output>

<result>32</result>