The store increases the purchase price of a certain color TV by 50%, and then sells it at a 20% discount. As a result, each color TV earns a profit of 270 yuan. What is the purchase price of each color TV set?
商店将某种彩电按进价提高50%定价，然偶再按八折优惠出售，结果每台彩电获得270元的利润，每台彩电的进价是多少元．
<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 + (1/2)</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(3/2) * (4/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">(6/5) - 1</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">270 / (1/5)</gadget>
<output>1_350</output>

<result>1_350</result>