Guangming Electric Store sold a refrigerator of a certain brand for 3,000 yuan, earning 20%, so how much is the purchase price of this refrigerator?
光明电器店以3000元出售了一台某品牌的冰箱，赚了20%，那么这台冰箱的进价是多少元？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">3_000 / (6/5)</gadget>
<output>2_500</output>

<result>2_500</result>