The shopping mall held a store celebration event, and a refrigerator was 600 yuan cheaper after a 20% discount. How much is the original price of this refrigerator?
商场开展店庆活动，一台冰箱八折后便宜了600元，这台冰箱原价多少元？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 - (4/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">600 / (1/5)</gadget>
<output>3_000</output>

<result>3_000</result>