After a 20% discount, the price of a product is 240 yuan. How much is the original price of this product?
一件商品优惠了两折后价格是240元，这件商品原价多少元？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">240 / (4/5)</gadget>
<output>300</output>

<result>300</result>