A bicycle sold at 20% off is 240 yuan. What is the original price?
一辆自行车打八折出售是240元，原价是多少元．
<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>