After the price of a TV is reduced by 20% for the first time, the price is reduced by 5% for the second time, and the price is 3040 yuan. What is its original price?
一台电视机第一次降价20%后，第二次又降价5%，售价是3040元．它的原价是多少元．
<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">1 - (1/20)</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">3_040 / (19/20) / (4/5)</gadget>
<output>4_000</output>

<result>4_000</result>