A certain commodity is sold at a 30% discount, which is 75 yuan cheaper than the original price. What is the original price of this commodity?
某种商品打七折出售，比原价便宜了75元，这件商品原价多少元．
<gadget id="calculator">70 / 100</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">1 - (7/10)</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">75 / (3/10)</gadget>
<output>250</output>

<result>250</result>