The selling price of a watch is 34 yuan after a 15% discount. What is its original price?
一块手表打八五折后卖价是34元，其原价是多少元．
<gadget id="calculator">85 / 100</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">34 / (17/20)</gadget>
<output>40</output>

<result>40</result>